CN102187273B - Optical unit with shake correction function, optical apparatus, and method of manufacturing optical unit with shake correction function - Google Patents
Optical unit with shake correction function, optical apparatus, and method of manufacturing optical unit with shake correction function Download PDFInfo
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- CN102187273B CN102187273B CN200980141620.4A CN200980141620A CN102187273B CN 102187273 B CN102187273 B CN 102187273B CN 200980141620 A CN200980141620 A CN 200980141620A CN 102187273 B CN102187273 B CN 102187273B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B5/02—Lateral adjustment of lens
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
- H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
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Abstract
Provided are an optical unit equipped with a shake correction function, the optical unit having improved impact resistance; an optical apparatus having mounted thereto the optical unit equipped with a shake correction function; and a method of manufacturing the optical unit equipped with a shake correction function. An optical unit (200) equipped with a shake correction function has projections (103) formed outside a movable module (1), and the projections (103) are each constituted of a module cover-side flange section (168) and a sensor cover-side flange section (188). The optical unit (200) also has a front stopper member (290) and a rear stopper member (270) which are arranged forward and rearward of and around the projections (103). The above configuration forms a stopper mechanism for limiting the range of movement of the movable module (1) in both directions in the X-axis, both directions in the Y-axis, both directions in the Z-axis, both directions about the X-axis, both directions about the Y-axis, and both directions about the Z-axis. As a result, the movable module (1) is not displaced excessively.
Description
Technical field
The present invention relates to a kind ofly make to install lensed module and swing the optical unit with shake correcting function revised with shakes such as opponent shake, be equiped with this with the optical device of the optical unit of shake correcting function and this manufacture method with the optical unit of shake correcting function.
Background technology
Be installed in image-capturing optical device, laser pen on mobile phone and digital camera etc., carry with and the optical devices such as projection display equipment of vehicle mounted in, when transmitting hand shake and external vibration, optical axis easily produces shake.
Therefore, for the middle photographing optical unit that use such as image-capturing optical device that carry use, following technology has been proposed: across elastic body, the lensed movable module of installing is bearing on fixed body, and form actuator on each side of movable module, according to the testing result that is installed in the hand shaking detection sensor of movable module, make movable module swing to revise hand shake (with reference to patent documentation 1) around the X-axis with actuator optical axis direction (Z-direction) quadrature and Y-axis.
Prior art document
Patent documentation
Patent documentation 1: Figure 12 of Japanese Patent Laid-Open 2007-129295 communique
Summary of the invention
Invent technical matters to be solved
Yet in patent documentation 1, although the energy displacement in omnirange of movable module, resistance to impact is not considered.Therefore, when impact from outside, be applied to be equiped with photographing optical unit and while making movable module displacement, be present in the position between movable module and fixed body, movable module can be damaged.Therefore the optical unit of, recording in patent documentation 1 has the lower such problem of resistance to impact.
The present invention does in view of above-mentioned technical matters, and its object is to provide a kind of optical unit with shake correcting function that can improve resistance to impact, is equiped with this with the optical device of the optical unit of shake correcting function and this manufacture method with the optical unit of shake correcting function.
The technical scheme that technical solution problem adopts
For solving the problems of the technologies described above, in the present invention, with the optical unit of shake correcting function, comprise: movable module is equiped with optical element in this movable module, fixed body, this fixed body supports above-mentioned movable module, shaking detection sensor, this shaking detection sensor detects rocking of above-mentioned movable module, and shake correction is used magnetic driving mechanism, this shake correction makes above-mentioned movable module swing to revise the shake of this movable module with magnetic driving mechanism on above-mentioned fixed body according to the testing result of above-mentioned shaking detection sensor, it is characterized in that, there is spring member, this spring member is connected with above-mentioned movable module with above-mentioned fixed body, when using three directions orthogonal in above-mentioned fixed body respectively as X-axis, Y-axis, Z axis, and during using the direction along above-mentioned optical axis as Z axis, between above-mentioned movable module and above-mentioned fixed body, form limited location mechanism, this position-limit mechanism is two directions in X-direction to above-mentioned movable module, two directions in Y direction, two directions in Z-direction, two directions around X-axis, around two directions of Y-axis and around the movable range of two directions of Z axis, limit.
In the present invention, even if because the impact from outside makes movable module displacement, its displacement also can limited mechanics limit.So spring member, movable module can be not damaged, therefore, can improve the resistance to impact with the optical unit of shake correcting function.
In another embodiment of the present invention, with the optical unit of shake correcting function, comprise: movable module is equiped with optical element in this movable module; Fixed body, this fixed body supports above-mentioned movable module; Shaking detection sensor, this shaking detection sensor detects rocking of above-mentioned movable module; And shake correction is used magnetic driving mechanism, this shake correction makes above-mentioned movable module swing to revise the shake of this movable module with magnetic driving mechanism on above-mentioned fixed body according to the testing result of this shaking detection sensor, it is characterized in that, have: spring member, this spring member is connected between above-mentioned fixed body and above-mentioned movable module; And swing fulcrum, this swing fulcrum is formed between above-mentioned fixed body and above-mentioned movable module, above-mentioned spring member is stated upward and is swung the fulcrum application of force above-mentioned movable module, the part that forms above-mentioned swing fulcrum in above-mentioned fixed body has spring portion, and this spring portion makes the above-mentioned swing fulcrum can displacement on optical axis direction.
In the present invention, because forming, the rear side in movable module has swing fulcrum, so, even if in the situation that be applied with impact along the movable module direction that body presses that is fixed because of impact from outside, owing to being formed with, make to swing the spring portion that fulcrum can displacement on optical axis direction on fixed body, therefore, concentrating on before the impact that swings fulcrum arrives and make to swing the size of fulcrum breakage, spring portion can be crooked, thereby the part beyond the swing fulcrum of movable module is withstood shocks.So, more than concentrating on the restoring force that the impact that swings fulcrum can not reach the spring that the bending because of spring portion produces, can be damaged thereby make to swing fulcrum.Therefore, can improve the resistance to impact with the optical unit of shake correcting function.Owing to the amount of bow of spring portion being set in the scope of the stress limit that is no more than spring portion, therefore, spring portion can be because plastic yield occurs in impact, and when not impacting, this spring portion can be returned to original shape, also can stand impact repeatedly.
In the present invention, comparatively it is desirable to, above-mentioned spring portion is the plate spring part that above-mentioned fixed body is processed.If form like this, even if do not append new member, also can improve the resistance to impact with the optical unit of shake correcting function.
In the present invention, comparatively it is desirable to, caves in towards the place ahead in the rear that is formed with the part of above-mentioned swing fulcrum and above-mentioned plate spring part in above-mentioned fixed body.If form like this, even if swing fulcrum towards rear side displacement, the plate spring part in fixed body can not given prominence to towards the rear yet.
In adopting the present invention of said structure, comparatively it is desirable to, when using three directions orthogonal in above-mentioned fixed body respectively as X-axis, Y-axis, Z axis, and during using the direction along above-mentioned optical axis as Z axis, between above-mentioned movable module and above-mentioned fixed body, form limited location mechanism, this position-limit mechanism to above-mentioned movable module two directions in X-direction, two directions in Y direction, two directions in Z-direction, around two directions of X-axis, limit around two directions of Y-axis and around the movable range of two directions of Z axis.If employing said structure, even if because the impact from outside makes movable module displacement, its displacement also can limited mechanics limit.So spring member, movable module can be not damaged, therefore, can improve the resistance to impact with the optical unit of shake correcting function.
In the present invention, can adopt following structure, above-mentioned swing fulcrum is hinge portion, and this hinge portion comprises: the side from above-mentioned fixed body and above-mentioned movable module is towards the outstanding support projection of Z-direction; And at opposite side and the chimeric supporting recess of above-mentioned supporting teat, in above-mentioned position-limit mechanism, the movable range of two directions of above-mentioned movable module in X-direction and the movable range of two directions in Y direction are limited in circumferential lateral surface and the above-mentioned supporting of above-mentioned supporting teat and use between the inner circumferential side face of recess.
In the present invention, comparatively it is desirable to, above-mentioned movable module has teat, this teat court is outstanding with the direction that Z-direction is intersected, in above-mentioned position-limit mechanism, two directions of above-mentioned movable module in X-direction, two directions in Y direction, two directions in Z-direction, around two directions of X-axis, be limited around two directions of Y-axis and at least one movable range in the movable range of two directions of Z axis.
In this case, comparatively it is desirable to, when observing from Z-direction, above-mentioned movable module is shaped as rectangle, in above-mentioned position-limit mechanism, above-mentioned movable module is around the movable range of two directions of X-axis, be limited between above-mentioned teat and above-mentioned fixed body in the angle part of observing when Z-direction is observed above-mentioned movable module around the movable range of two directions of Y-axis and at least one movable range in the movable range of two directions of Z axis.When movable module is during around X-axis, around Y-axis and around Z axis displacement, its action is maximum in angle part.So the gap size in angle part for teat and fixed body allows larger error, therefore, assembling is easy, and can correctly set movable range.
In the present invention, comparatively it is desirable to, in above-mentioned position-limit mechanism, the movable range of two directions of above-mentioned movable module in Z-direction is limited between above-mentioned teat and above-mentioned fixed body at the oscillation centre line in above-mentioned movable module when Z-direction is observed.Even if movable module swings, with the displacement of its oscillation centre axis along the overlapping position of Z-direction along Z-direction be also less, therefore, if in the displacement of above-mentioned position limitation Z-direction, can correctly limit the movable range of the Z-direction of movable module.
In the present invention, comparatively it is desirable to, in above-mentioned position-limit mechanism, the movable range of two directions of above-mentioned movable module in X-direction and the movable range of two directions in Y direction are limited between above-mentioned teat and above-mentioned fixed body.
In the present invention, comparatively it is desirable to, above-mentioned projection is disposed at and forms above-mentioned shake correction with between the position in the Z-direction of the position in the magnet of magnetic driving mechanism and the Z-direction of coil and above-mentioned swing fulcrum in Z-direction.Because above-mentioned position is the space that sky is opened, therefore, even if in the situation that make the optical unit miniaturization with shake correcting function, also can form projection and utilize the position-limit mechanism of projection.
In the present invention, comparatively it is desirable to, in above-mentioned position-limit mechanism, limit at least one side in above-mentioned movable module side and above-mentioned fixedly side in the part of the side movable range in the Z-direction of above-mentioned movable module and form and using the oscillation centre side of above-mentioned But moving die piece as the arc surface at center.If employing said structure, even if when movable module tilts, also can correctly limit the movable range of the Z-direction of movable module.
In the present invention, can adopt following structure, in above-mentioned position-limit mechanism, above-mentioned movable module is for example limited between the leading section of above-mentioned movable module side and the leading section on above-mentioned fixedly side towards the movable range of Z-direction front side, and at least one party in the leading section on the leading section of above-mentioned movable module side and above-mentioned fixedly side forms usings the oscillation centre side of above-mentioned But moving die piece as the arc surface at center.
In the present invention, also can adopt following structure, in above-mentioned position-limit mechanism, the movable range of two directions of above-mentioned movable module in X-direction, the movable range of two directions in Y direction, around the movable range of two directions of X-axis and at least one movable range in the movable range of two directions of Y-axis, be limited in being disposed between shake revises with teat and magnet inside the hollow coil using in magnetic driving mechanism.According to said structure, can limit reliably the movable range of two directions of movable module in X-direction, the movable range of two directions in Y direction, around the movable range of two directions of X-axis and around movable range of two directions of Y-axis etc.
In the present invention, comparatively it is desirable to, at least one party who forms in above-mentioned movable module and above-mentioned fixed body in the part of above-mentioned position-limit mechanism consists of resin or rubber.If form like this, vibration when position-limit mechanism is worked is difficult for towards around propagating.
In addition, at least one party who forms in above-mentioned movable module and above-mentioned fixed body in the part of above-mentioned position-limit mechanism also can adopt the structure consisting of the snubber material that is pasted on above-mentioned movable module or above-mentioned fixed body.Even if form like this, vibration during position-limit mechanism work is also difficult for towards around propagating.
In the present invention, comparatively it is desirable to, above-mentioned shaking detection sensor is installed in above-mentioned movable module.
In the present invention, can adopt following structure, above-mentioned optical element is lens, and in above-mentioned movable module, the rear side of said lens is equiped with imaging apparatus, and above-mentioned shaking detection sensor detects the shake in when photography.
In the optical device of the optical unit with shake correcting function using in being provided with the present invention, comparatively it is desirable to, with the optical unit of shake correcting function, across snubber material, be installed in optical device main body.
In the present invention, with the feature of the manufacture method of the optical unit of shake correcting function, be to adopt following method, this optical unit with shake correcting function comprises: movable module is equiped with optical element in this movable module; Fixed body, this fixed body supports above-mentioned movable module; Shaking detection sensor, this shaking detection sensor detects rocking of above-mentioned movable module; Shake correction is used magnetic driving mechanism, and this shake correction makes above-mentioned movable module swing to revise the shake of this movable module with magnetic driving mechanism on above-mentioned fixed body according to the testing result of above-mentioned shaking detection sensor; And spring member, this spring member is connected between above-mentioned fixed body and above-mentioned movable module.
First, by above-mentioned movable module with above-mentioned fixed body after the mode of predetermined distance configures, in above-mentioned fixed body and above-mentioned movable module, above-mentioned spring member is installed.
In addition, also can, by after above-mentioned movable module and the link of above-mentioned spring member, above-mentioned movable module is configured with the mode of above-mentioned fixed body across predetermined distance, then, above-mentioned fixed body and above-mentioned spring member be linked.
In addition also can, by after above-mentioned fixed body and the link of above-mentioned spring member, above-mentioned movable module is configured with the mode of above-mentioned fixed body across predetermined distance, then, above-mentioned movable module and above-mentioned spring member be linked.
Even in the situation that adopting above-mentioned any method, also can between movable module and fixed body, guarantee specified gap.
Invention effect
In using the optical unit with shake correcting function of the present invention, when forming limit component, even because the impact from outside makes movable module displacement, its displacement also can limited mechanics limit, and this limit component limits the both direction of movable module in X-direction, the both direction in Y direction, the both direction in Z-direction, around the both direction of X-axis, around the both direction of Y-axis with around the movable range of the both direction of Z axis.So spring member, movable module can be not damaged, therefore, can improve the resistance to impact with the optical unit of shake correcting function.
In using the optical unit with shake correcting function of the present invention, in the situation that be applied with impact along the movable module direction that body presses that is fixed because of impact from outside, owing to being formed with the spring portion that can make to swing fulcrum displacement on optical axis direction on fixed body, therefore, concentrating on before the impact that swings fulcrum reaches and make to swing the size of fulcrum breakage, spring portion can be crooked, thereby the part beyond the swing fulcrum of movable module is withstood shocks.So, more than the impact that concentrates on supporting device can not reach the restoring force of the spring that the bending because of spring portion produces, thereby make the supporting device can be damaged.Therefore, can improve the resistance to impact with the optical unit of shake correcting function.Owing to the amount of bow of spring portion being set in the scope of the stress limit that is no more than spring portion, therefore, spring portion can be because plastic yield occurs in impact, and when not impacting, this spring portion can be returned to original shape, also stands impact repeatedly.
In using the manufacture method of the optical unit with shake correcting function of the present invention, by movable module with fixed body after the mode of predetermined distance configures, mounting spring member in fixed body and movable module.Or, also can, by after movable module and spring member link, above-mentioned movable module is configured with the mode of fixed body across predetermined distance, then, fixed body and spring member be linked.Or, also can, by after fixed body and spring member link, movable module is configured with the mode of fixed body across predetermined distance, then, movable module and spring member be linked.Therefore, can between movable module and fixed body, guarantee specified gap, so even if the in the situation that of being applied with impact in movable module, can not produce excessive shake to movable module, and movable module can not collided tempestuously with fixed body yet.Therefore, can improve the resistance to impact with the optical unit of shake correcting function.
Accompanying drawing explanation
Fig. 1 means the key diagram of applying the optical unit integral body with shake correcting function of the present invention.
Fig. 2 is the key diagram of the lens driving module that forms in the movable module of the application optical unit with shake correcting function of the present invention.
Fig. 3 is the key diagram that schematically illustrates the action of the lens driving module shown in Fig. 2.
Fig. 4 means the key diagram of the cross section structure of applying the optical unit with shake correcting function of the present invention.
Fig. 5 means the key diagram of the cross section structure when application optical unit with shake correcting function of the present invention is dissectd in the position different from Fig. 4.
Fig. 6 observes the exploded perspective view of the application optical unit with shake correcting function of the present invention from front side.
Fig. 7 observes the exploded perspective view of the application optical unit with shake correcting function of the present invention from rear side.
Fig. 8 is the application movable module of the optical unit with shake correcting function of the present invention and the key diagram of the member being connected with this movable module.
Fig. 9 observes the application movable module of using with the optical unit of shake correcting function of the present invention and the exploded perspective view of flexible base, board from front side.
Figure 10 observes the application movable module of using with the optical unit of shake correcting function of the present invention and the exploded perspective view of flexible base, board from rear side.
Figure 11 is the key diagram that application forms the member of supporting device etc. in the optical unit with shake correcting function of the present invention.
Figure 12 (a), Figure 12 (b) observe key diagram and the cut-open view of base, spring member and the sender unit cap of the application optical unit with shake correcting function of the present invention from X-direction.
Figure 13 is the key diagram of applying the member of the movable range that limits movable module in the optical unit with shake correcting function of the present invention.
Figure 14 is the key diagram of applying the mechanism of the movable range that limits movable module in the optical unit with shake correcting function of the present invention.
Figure 15 is the key diagram of another embodiment 1 of applying the position-limit mechanism of the optical unit with shake correcting function of the present invention.
Figure 16 is the key diagram of another embodiment 2 of applying the position-limit mechanism of the optical unit with shake correcting function of the present invention.
Figure 17 is the key diagram of another embodiment 3 of applying the position-limit mechanism of the optical unit with shake correcting function of the present invention.
Figure 18 is the key diagram of another embodiment 4 of applying the position-limit mechanism of the optical unit with shake correcting function of the present invention.
Figure 19 is the key diagram of another embodiment 5 of applying the position-limit mechanism of the optical unit with shake correcting function of the present invention.
Figure 20 is the key diagram that is equiped with the optical device of applying the optical unit with shake correcting function of the present invention.
(symbol description)
1 movable module
1a lens driving module
160 module lid
168 module lid side flange portions
170 hand shaking detection sensors
180 sender unit caps
188 sender unit cap side flange portions
200 optical units with shake correcting function
210 fixed bodies
220 bases
The shake of 230x hand is revised with coil (the first shake correction coil)
The shake of 230y hand is revised with coil (the second shake correction coil)
The shake of 240x hand is revised with magnet (first-hand shake correction magnet)
The shake of 240y hand is revised with magnet (second-hand shakes correction magnet)
The first-hand shake correction magnetic driving mechanism of 250x
250y second-hand shakes to revise and uses magnetic driving mechanism
260 fixed caps
270 rear side limit components
280 spring members (force application component)
290 front side limit components
300 flexible base, boards
400 supporting devices
500 optical devices
Embodiment
Below, with reference to accompanying drawing to describing for implementing embodiments of the present invention.In the following description, three directions orthogonal in fixed body are made as respectively to X-axis, Y-axis, Z axis, and the direction along optical axis L (lens axis) is described as Z axis.Therefore, in the following description, in the shake of all directions, rotation around X-axis is equivalent to so-called pitching (pitching) (longitudinal oscillation), rotation around Y-axis is equivalent to so-called deflection (yawing) (teeter), around the rotation of Z axis, is equivalent to so-called rolling (rolling).In addition, in the following description, will " side is taken " conduct " front side " or " upside " describe, and " side contrary with the side that is taken " conduct " rear side " or " downside " are described.
(with the one-piece construction of the optical unit of shake correcting function)
Fig. 1 means the key diagram of applying the optical unit integral body with shake correcting function of the present invention, Fig. 1 (a) observes the stereographic map of the application optical unit with shake correcting function of the present invention from the side that is taken (front side), Fig. 1 (b) is to be the stereographic map that rear side is observed from a side contrary with subject, and Fig. 1 (c) means and will with the optical unit of shake correcting function, be installed in the key diagram of the state after the optical devices such as mobile phone.
The optical unit 200 with shake correcting function shown in Fig. 1 (a), Fig. 1 (b) (with the optical unit of hand shake correcting function) is the thin camera using in the mobile phone with camera, and it is roughly rectangular shape on the whole.In the present embodiment, the optical unit 200 with shake correcting function comprises: the base 220 that essentially rectangular is tabular; And the fixed cap 260 of case shape that covers the top of this base 220, thereby base 220 and fixed cap 260 are fixed to one another a part that forms fixed body 210.In fixed body 210, anterior end (subject side end) at fixed cap 260 is also fixed with tripper, light filter driving mechanism and accessory module sometimes, wherein, above-mentioned light filter driving mechanism switches to the state occurring on optical axis and the state disappearing from optical axis by various light filters, and above-mentioned accessory module is built-in with aperture device.
In the inner side of fixed cap 260, dispose for the built-in movable module 1 of the focusing of lens (optical element), and as hereinafter described, formed and made movable module 1 swing to carry out the hand shake correction mechanism that hand shake is revised.Movable module 1 has for the built-in lens driving module 1a of the focusing of lens, and this lens driving module 1a is maintained at the inner side of the module lid 160 of square tube shape.
At this, the lead division 350 of flexible base, board 300 is fixed on side plate 262 by bonding agent etc., in the present embodiment, by above-mentioned flexible base, board 300, carries out movable module 1, the shake of aftermentioned hand correction mechanism and outside being electrically connected to.For example, the end of the lead division 350 of flexible base, board 300 be disposed at outside connector (not shown) and be connected.
(structure of lens driving module)
Fig. 2 is the key diagram at the lens driving module 1a of the movable module 1 interior formation of the application optical unit 200 with shake correcting function of the present invention, and Fig. 2 (a), Fig. 2 (b) observe outside drawing and the exploded perspective view of lens driving module 1a from oblique upper.Fig. 3 is the key diagram that schematically illustrates the action of the lens driving module 1a shown in Fig. 2.The left-half of Fig. 3 means figure when moving body 3 is positioned at the position of infinity (camera positions conventionally), and the right half part of Fig. 3 means figure when moving body 3 is positioned at close-perspective recording position (closely connecing camera positions).
In Fig. 2 (a), Fig. 2 (b) and Fig. 3, lens driving module 1a be used for making lens (optical element) along optical axis L direction towards approach subject (object side) A direction (front side), towards this both direction of B direction (rear side) that approaches a side contrary with subject (imaging apparatus side/as side), move, this lens driving module 1a is roughly rectangular shape.Lens driving module 1a roughly has: the moving body 3 that three lens 121 (optical element) and fixed aperture is remained on to inner side; The lens actuating device 5 that this moving body 3 is moved along the direction of optical axis L; And the supporting mass 2 that is equiped with lens actuating device 5 and moving body 3 etc.Moving body 3 comprises: the lens keeper 12 cylindraceous that lens 121 and fixed aperture are kept; And to aftermentioned lens, drive the lens that keep with coil 30s, 30t to drive with coil keeper 13 by circumferential lateral surface.
Supporting mass 2 comprises: at the imaging apparatus keeper 19 of the rectangular plate shape of a side positioning shooting element 15 contrary with the side that is taken; On the side that is taken, cover the housing 18 of the case shape of imaging apparatus keeper 19; And the dividing plate 11 that is disposed at the rectangular plate shape of housing 18 inner sides, in the central authorities of housing 18 and dividing plate 11, be formed with respectively for the light from subject being introduced to the circular window 18a, 110 that injects of lens 121.In addition, in the central authorities of imaging apparatus keeper 19, be formed with and will inject light and guide to the hole 19a of imaging apparatus 15.
In addition, in lens driving module 1a, supporting mass 2 has the substrate 154 that imaging apparatus 15 is installed, and substrate 154 is fixed on the lower surface of imaging apparatus keeper 19.At this, substrate 154 is double-sided substrates, in the lower face side of substrate 154, is connected with the flexible base, board 300 shown in Fig. 1.
In the present embodiment, housing 18 consists of ferromagnetism plates such as steel plates, also plays the effect of yoke portion.Therefore, housing 18 drives and form interlinkage magnetic field generating body 4 together with magnet 17 with aftermentioned lens, and this interlinkage magnetic field generating body 4 makes to be held in lens driving and produces interlinkage magnetic field with lens driving coil 30s, the 30t of coil keeper 13.Above-mentioned interlinkage magnetic field generating body 4 be wound in lens and drive with the lens driving of the outer peripheral face of coil keeper 13 form lens actuating device 5 together with coil 30s, 30t.
Supporting mass 2 is connected by metal spring member 14s, 14t with moving body 3.The basic structure of spring member 14s, 14t is identical, comprising: the outer circumferential side linking part 14a that is held in supporting mass 2 sides; Be held in the circular inner circumferential side linking part 14b of moving body 3 sides; And the plate spring part 14c of the arm shape that outer circumferential side linking part 14a is connected with inner circumferential side linking part 14b.In spring member 14s, 14t, the outer circumferential side linking part 14a of the spring member 14s of imaging apparatus side kept by imaging apparatus keeper 19, the lens of inner circumferential side linking part 14b and moving body 3 drive the imaging apparatus side end face link with coil keeper 13.The outer circumferential side linking part 14a of spring member 14t on side of being taken is kept by dividing plate 11, and the lens of inner circumferential side linking part 14b and moving body 3 drive with the subject side end face of coil keeper 13 and link.Like this, moving body 3 is supported body 2 by spring member 14s, 14t and is supported to and can moves up in optical axis L side.Above-mentioned spring member 14s, 14t make by such nonmagnetic metal such as beryllium copper, nonmagnetic SUS class steel, by the thin plate of specific thickness being carried out to punch process or using the etching and processing of photolithography to form.In spring member 14s, 14t, spring member 14s is divided into two into spring leaf 14e, 14f, and lens drive with each end of coil 30s, 30t and are connected with spring leaf 14e, 14f respectively.In addition, in spring member 14s, be formed with respectively terminal 14d on spring leaf 14e, 14f, spring member 14s (spring leaf 14e, 14f) also plays lens is driven to the effect with the power supply component of coil 30s, 30t power supply.
In the present embodiment, drive the magnetic piece 61 that is keeping ring-type in the anterior end surface with coil keeper 13 at lens, it is forward position that the position of above-mentioned magnetic piece 61 drives with magnet 17 with respect to lens.Magnetic piece 61 utilizations act on magnetic piece 61 and lens driving applies the acting force of optical axis L direction by attractive force between magnet 17 to moving body 3.Therefore, can prevent moving body 3 when not switching on because of deadweight displacement, thereby make moving body 3 maintain the posture of expectation, can also improve resistance to impact in addition.In addition, magnetic piece 61 is disposed at the anterior end surface of lens keeper 12, and magnetic piece 61 (origin position) when not switching on drives with magnet 17 and attracts with lens, thereby can make lens keeper 12 be still in rear side.
In the lens driving module 1a of present embodiment, when observing from optical axis L direction, lens 121 are rounded, but the rectangular case shape of housing 18 using in supporting mass 2.Therefore, housing 18 has angle tubular body 18c, in the upper surface side of angle tubular body 18c, has and is formed with the upper plate portion 18g that injects window 18a.In the present embodiment, angle tubular body 18c is square tube shape, while observing from optical axis L direction, everybody who is equivalent to tetragonal limit, has installed four side plate 18b.On each inside surface of four side plate 18b, be connected with lens and drive with magnet 17, said lens drives and the tabular permanent magnet of rectangle, consists of respectively with magnet 17.Four lens drive and all in optical axis L direction, by magnetic, are divided into two with magnet 17, at any lens, drive with in magnet 17, and inside surface and outside surface are all magnetized to the different utmost points.For example, at four lens, drive with in magnet 17, for example the inside surface of the first half is magnetized to the N utmost point, and outside surface is magnetized to the S utmost point, and the inside surface of the latter half is magnetized to the S utmost point, and outside surface is magnetized to the N utmost point.Therefore, at four lens, drive with in magnet 17, adjacent permanent magnet pole configuration is each other identical, can produce efficiently interlinkage lines of magnetic induction to coil.
Moving body 3 comprises: the lens keeper 12 cylindraceous that lens 121 grades are kept; And the lens driving coil keeper 13 that is wound with coil (lens drive with coil 30s, 30t) in circumferential lateral surface, utilize lens keeper 12 and lens to drive the sidewall sections that forms moving body 3 with coil keeper 13.The first half of lens keeper 12 is large diameter large footpath cylindrical portion 12b, and Lower Half is the path cylindrical portion 12a that diameter is less than the diameter of large footpath cylindrical portion 12b.Lens drive with coil keeper 13 to be had for lens keeper 12 being remained on to the circular lens keeper reception hole 130 of inner side.
In present embodiment, when observing lens driving with coil keeper 13 from optical axis L direction, these lens drive by interior all shapes of coil keeper 13 rounded, but limit lens, drive by the circumferential lateral surface 131 of the peripheral shape of coil keeper 13 and be quadrilateral, everybody who is equivalent to tetragonal four edges, be set up and comprise four faces 132.In said lens, drive in the circumferential lateral surface 131 with coil keeper 13, both ends in optical axis L direction and middle position are to be formed with rib 131a, 131b, 131c around its all-round mode, the recess that is formed at the rib 131a of imaging apparatus side end and is formed between the rib 131b of middle position is the first coil winder 132a, is formed at the rib 131c of subject side end and the recess that is formed between the rib 131b of middle position is the second 132b of coil winding portion.
At lens, drive with in coil keeper 13, on each face in four faces 132, the through hole (through hole 133a, 133b) that is formed with respectively to avoid the rectangle that the mode of tetragonal angle part forms remainder excision in the first coil winder 132a and the second 132b of coil winding portion, above-mentioned through hole 133a, 133b run through lens and drive the side walls with coil keeper 13 in inward-outward direction.Like this, in present embodiment, utilize lens to drive with through hole 133a, the 133b of coil keeper 13 and formed the cavern part inwards caving in the circumferential lateral surface 131 of moving body 3.But, in week, make progress, through hole 133a, 133b are formed at lens with roughly 1/3 the size of the circumferential lengths size (size on tetragonal limit) of each face 132 and drive the middle body between dividing by adjacent corners in the circumferential lateral surface 131 of coil keeper 13.Therefore, at lens, drive with the angle part of coil keeper 13 and with the thickness equating, be formed with the leg portion 134 of the heavy wall extending along optical axis L direction.
At such lens that form, drive with in coil keeper 13, on the first coil winder 132a, be wound with lens driving and use coil 30s, on the second 132b of coil winding portion, be wound with lens driving coil 30t.At this, when observing from optical axis L direction, the first coil winder 132a and the second 132b of coil winding portion are quadrilateral, and therefore, lens drive and are all wound into square tube shape with coil 30s, 30t.Because driving, four lens all in optical axis L direction, by magnetic, are divided into two with magnet 17, at any lens, drive and be all magnetized to the different utmost points with inside surface and outside surface in magnet 17, therefore, two lens drivings are contrary with the coiling direction of coil 30s, 30t.
The lens that form like this drive the inner side that is disposed at housing 18 with coil keeper 13.Consequently, lens drive with four limit portions of coil 30s, 30t and drive use magnet 17 subtends with the lens that are fixed on the inside surface of square tube shape body 18c of housing 18 respectively.
(action of lens actuating device)
In the lens driving module 1a of present embodiment, moving body 3 is usually located at imaging apparatus side (imaging apparatus side), when under such state, to lens, driving passes to the electric current of prescribed direction with coil 30s, 30t, lens drive the electromagnetic force that is subject to respectively upward (front side) with coil 30s, 30t.By this, being connected with lens drives with moving body 3 beginnings of coil 30s, 30t mobile towards the side (front side) that is taken.Now, between spring member 14t and the front end of moving body 3 and between spring member 14s and the rear end of moving body 3, producing the elastic force that the movement of moving body 3 is limited.Therefore, want to make moving body 3 forward side shifting electromagnetic force with the movement of moving body 3 is limited Spring balanced time, moving body 3 stops.Now, the elastic force that acts on moving body 3 according to spring member 14s, 14t is adjusted the magnitude of current that flows into lens coil 30s, 30t for driving, thereby can make moving body 3 stop at the position of expectation.
In addition, in lens driving module 1a, lens 121 are rounded, but irrelevant with said lens shape, lens drive and are quadrilateral with coil 30s, 30t, it is tabular permanent magnets with magnet 17 that lens drive, and this tabular permanent magnet is fixed in respectively on a plurality of inside surfaces on the limit that is equivalent to square tube shape body 18c that inner peripheral surface in supporting mass 2 forms tetragonal housing 18.Therefore, even between moving body 3 and supporting mass 2, at the outer circumferential side of moving body 3, there is no enough spaces, because lens drive with coil 30s, 30t, drive the subtend area of use magnet 17 wider with lens, therefore, can bring into play enough thrust yet.
For the lens driving module 1a of such formation, imaging apparatus 15 and lens driving coil 30s, 30t need to be electrically connected to the control part (not shown) of apparatus main body.Therefore, in present embodiment, a side configuration flexible base, board 300 (with reference to Fig. 1) contrary with the side that is taken at lens driving module 1a is electrically connected to imaging apparatus 15 and lens and drives with coil 30s, 30t on the Wiring pattern that is formed at flexible base, board 300.
(one-piece construction of hand shake correction mechanism)
As shown in Fig. 1 (c), the optical unit 200 with shake correcting function of present embodiment is installed on the optical devices such as mobile phone 500, for photography.In above-mentioned optical device 500, when photographing, Z axis is roughly towards horizontal direction.Therefore, the hand shake owing to pressing shutter, may produce the longitudinal judder around X-axis, and produces the transverse judder around Y-axis.Therefore, in the present embodiment, added the hand shake correcting function describing below with reference to Fig. 4～Figure 16.In above-mentioned hand shake correction mechanism, in movable module 1, hand shaking detection sensor is set, and utilizes hand shake correction to make to be configured to swing around X-axis and the movable module swinging around Y-axis 1 with respect to fixed body 210 with magnetic driving mechanism.
In present embodiment, by the order below, illustrate that formation is with each structure of the shake correction mechanism of the optical unit 200 of shake correcting function.
One-piece construction Fig. 4～Fig. 7 with the optical unit 200 of shake correcting function
Detailed structure Fig. 4, Fig. 5, Fig. 6～Figure 10 of movable module 1
Structural drawing 4, Fig. 5, Figure 11 and Figure 12 of the supporting device of movable module 1 use
Structure Figure 13 and Figure 14 of the movable range limiting mechanism of movable module 1 use
Fig. 4 means the key diagram of the cross section structure of applying the optical unit 200 with shake correcting function of the present invention, and Fig. 4 (a), Fig. 4 (b) are respectively the longitudinal section when optical unit with shake correcting function 200 is dissectd in the position that is equivalent to Y1-Y1 ' line of Fig. 1 (a) and the longitudinal section while dissecing in the position that is equivalent to X1-X1 ' line of Fig. 1 (a).Fig. 5 means the key diagram of the cross section structure while dissecing in the position different from Fig. 4 by the application optical unit 200 with shake correcting function of the present invention, and Fig. 5 (a), Fig. 5 (b) are respectively the longitudinal section when optical unit with shake correcting function 200 is dissectd in the position that is equivalent to C1-C1 ' line of Fig. 1 (a) and the longitudinal section while dissecing in the position that is equivalent to C2-C2 ' line of Fig. 1 (a).Fig. 6 and Fig. 7 observe the exploded perspective view of the application optical unit 200 with shake correcting function of the present invention and the exploded perspective view of observing from rear side from front side.Fig. 8 applies the movable module 1 of the optical unit 200 with shake correcting function of the present invention and the key diagram of the member that is connected with this movable module 1, and Fig. 8 (a), Fig. 8 (b) observe movable module 1 and the stereographic map of the member that is connected with this movable module 1 and the stereographic map of observing from rear side from front side.
In present embodiment, as shown in Figure 4 to 7, fixed body 210 have from rear side (downside) towards front side (upside) by base 220, rear side limit component 270, front side limit component 290 and fixed cap 260 successively overlapping fixing structure.The detailed structure of these members will be explained below, base 220 plays movable module 1 is supported to the function that can swing, rear side limit component 270 and front side limit component 290 play the function of the excessive displacement of the movable module 1 that prevention can swing, fixed cap 260 works as the shell of the optical unit 200 with shake correcting function, and plays the function that keeps hand shake coil 230x, 230y for correction.
Between base 220 and movable module 1, dispose the flexible base, board 300 shown in Fig. 4～Fig. 8 and spring member 280 (force application component), above-mentioned flexible base, board 300 and spring member 280 are connected with movable module 1.In addition, spring member 280 is also connected with fixed body 20.
Flexible base, board 300 plays and carries out shaking detection sensor 170, shake and revise by magnetic driving mechanism and the outside function being electrically connected to, and spring member 280 plays movable module 1 is supported to and can be swung and the function towards base 220 application of forces to movable module 1.
(the movable detailed structure of module 1 and the configuration of hand shaking detection sensor 17)
Fig. 9 and Figure 10 observe the exploded perspective view of the application movable module 1 of using with the optical unit 200 of shake correcting function of the present invention and flexible base, board 300 and the exploded perspective view of observing from rear side from front side.
As shown in Fig. 4～Figure 10, movable module 1 has the module lid 160 that lens driving module 1a is held in to inner side.While observing from Z-direction, module lid 160 rectangular shapeds, extend four side plates 162 from the outer peripheral edges of the top plate portion 161 of rectangular shape towards rear side.In module lid 160, in top plate portion 161, be formed with circular peristome 161a.
The rearward end opening of module lid 160, metal sender unit cap 180 links to cover above-mentioned opening with the rearward end of module lid 160.In order to carry out above-mentioned link, in present embodiment, rearward end in module lid 160 has the bend 169 stretching out towards outside, above-mentioned bend 169 has module lid side flange portion 168 in its four angle parts, and this module lid side flange portion 168 (being in the face with Z axis quadrature in present embodiment) in the face intersecting with Z axis significantly stretches out towards outside.
Herein, sender unit cap side flange portion 188 forms in Z-direction overlapping with module lid side flange portion 168.In addition, in sender unit cap side flange portion 188 and module lid side flange portion 168, be formed with aperture 188a, 168a.Therefore, in present embodiment, at the axial region of screw 198, run through under the state of aperture 188a, 168a, the cylindrical member 199 that inner peripheral surface is formed with to female screw is fixed on axial region.Like this, when sender unit cap 180 is linked with module lid 160, as shown in Fig. 4～Fig. 8, on the outer peripheral face of movable module 1, by module lid side flange portion 168 and sender unit cap side flange portion 188, form teat 103, this teat 103 stretches out towards outside in four angle parts of movable module 1.
In sender unit cap 180, in four side plates 182, in Y direction, the side plate 182 of subtend is formed with breach 182a at its front-end edge.Therefore,, under the state that sender unit cap 180 and module lid 160 are linked, between sender unit cap 180 and module lid 160, be formed with the gap in Y direction upper shed.So, a part for flexible base, board 300 can be disposed between sender unit cap 180 and lens driving module 1a, and can the lead division of flexible base, board 300 350 be drawn from movable module 1 from a side of Y direction.
Flexible base, board 300 is three positions (dogleg section 301,302, the 303) bending in the longitudinal direction of the sheet material of the essentially rectangular shape of extending along Y direction and the shape forming.Therefore, flexible base, board 300 comprises: the extension 350 of drawing towards outside; The first plate part 310 being connected with extension 350; The second plate part 320 being connected with the first plate part 310 by dogleg section 301; The 3rd plate part 330 being connected with the second plate part 320 by dogleg section 302; And Siping City's plate portion 340, the first plate parts 310, the second plate part 320, the 3rd plate part 330 Ji Siping City plate portions 340 that by dogleg section 303, are connected with the 3rd plate part 330 form the shape stacking successively towards front side from the rear side of Z-direction.Herein, dogleg section 301,303 is bent into acute angle, and on the other hand, dogleg section 302 is the shape that slowly bends to U font.
In above-mentioned flexible base, board 300, the first plate part 310 and the second plate part 320 are disposed at the rear side (downside) of sender unit cap 180, and the 3rd plate part 330 Ji Siping City plate portions 340 are disposed between sender unit cap 180 and lens driving module 1a.Therefore, be constructed as follows structure: in flexible base, board 300, a side of dogleg section 302 is drawn around the inside to movable module 1, and in flexible base, board 300, the opposite side of dogleg section 302 extends towards outside from movable module 1.
In flexible base, board 300, hand shaking detection sensor 170 is installed on the lower surface of the 3rd plate part 330, the lower surface bonds of hand shaking detection sensor 170 is fixed on sender unit cap 180.So, in flexible base, board 300, drawn around part and movable module 1 integrated deflection to movable module 1 inside, in flexible base, board 300, the part that approaches movable module 1 part of drawing towards outside from movable module 1 is followed the swing of movable module 1 and is out of shape.
In addition, the upper surface at the 3rd plate part 330 is fixed with the sheet metal 380 of strengthening use by flexible double sticky tape 370.Under this state, the lower face side of hand shaking detection sensor 170 is shielded by sender unit cap 180, and the upper surface side of hand shaking detection sensor 170 is shielded by sheet metal 380.In addition, sheet metal 380 is located between hand shaking detection sensor 170 and imaging apparatus 15 (with reference to Fig. 2), thereby also plays the function that the lower face side of imaging apparatus 15 is shielded.Imaging apparatus 15 with reference to Fig. 2 explanation is electrically connected to Siping City's plate portion 340 of flexible base, board 300 by substrate 154 (double-sided substrate), and lens drive and also by spring leaf 14e, 14f, are electrically connected with coil 30s, 30t.In the present embodiment, hand shaking detection sensor 170 is gyrosensors (angular-rate sensor) of surface installing type, to diaxon, the angular velocity that comparatively it is desirable to the diaxon of quadrature detects.When carrying out above-mentioned detection, to gyrosensor input excitation signal, and according to the phase differential of output signal and input signal etc., come opponent to tremble and detect.Therefore, when electromagnetic wave noise is invaded from outside, hand is trembled detecting sensor 170 can carry out error detection, and hand is trembled detecting sensor 170 and self sometimes also can be become the generation source of electromagnetic wave noise.
In flexible base, board 300, at the first plate part 310 and the second plate part 320 that are disposed at sender unit cap 180 rear sides, be formed with large diameter circular hole 310a, 320a, above-mentioned hole 310a, 320a are that this supporting device 400 is supported to movable module 1 can swing for the barbed portion of the rear surface side configuration supporting device 400 at sender unit cap 180.Like this, in present embodiment, on flexible base, board 300, form breach, to avoid the mode of supporting device 400, configure flexible base, board 300.Therefore, the space between base 220 and movable module 1 can be used as to drawing around space of flexible base, board 300 effectively.
In addition, in the first plate part 310, dogleg section 301, the second plate part 320 and dogleg section 302, middle body at Width is formed with the slit 300a extending along Y direction, and above-mentioned slit 300a extends to dogleg section 302 continuously from the hole 310a being formed on the first plate part 310.Therefore, flexible base, board 300 is because being formed with correspondingly also easily distortion on Width (X-direction) of slit 300a and hole 310a, 320a.In addition, because the configuration of flexible base, board in X-direction 300 is symmetrical, therefore, no matter which direction is movable module 1 swing towards around Y-axis, and the power that flexible base, board 300 acts on movable module 1 is all identical.Therefore, can make movable module 1 swing suitably, thereby can carry out reliably hand shake, revise.And, in flexible base, board 300, because the extension drawing from movable module 1 is provided with the dogleg section 301,302 along Y direction bending, therefore, make movable module 1 when X-axis swings, recovery of shape power during flexible base, board 300 distortion is not easy the swing of movable module 1 to impact.
(supporting device 400/ swings the structure of fulcrum)
Figure 11 is the key diagram of applying the member with formation supporting device 400 grades in the optical unit 200 of shake correcting function of the present invention, and Figure 11 (a), Figure 11 (b), Figure 11 (c), Figure 11 (d) are respectively from the stereographic map of the base 220 of the optical unit 200 of front side observation band shake correcting function, spring member 280 and sender unit cap 180, from the stereographic map of rear side observation, from the exploded perspective view of front side observation and the exploded perspective view of observing from rear side.Figure 12 (a), Figure 12 (b) observe key diagram and the cut-open view of base 220, spring member 280 and the sender unit cap 180 of the application optical unit 200 with shake correcting function of the present invention from X-direction.
The base plate 181 of the sender unit cap 180 illustrating with reference to Fig. 4, Fig. 5, Fig. 9 and Figure 10 as shown in figure 11, while observing from front side, the circular portion 186 of central authorities caves in towards the rear, and the middle body of circular portion 186 has protruded round-ended cylinder shape towards the place ahead, thus the recess 187 (seat portion for supporting) of formation lower surface opening.
In the relative base 220 configuring of rear side of sender unit cap 180, from the outer peripheral edges of the base plate 221 of rectangle, towards front side, erect and have four side plates 222, one in Y direction in relative side plate 222 is formed with for drawing the breach 222a with reference to the flexible base, board 300 of Fig. 9 and Figure 10 explanation.In base 220, at the middle body of base plate 221, be formed with (upside) outstanding support projection that has round-ended cylinder shape 227 towards front side, at the front end face of support projection 227, be formed with hemispheric kick 227a.Therefore, as shown in Figure 12 (a), when the front side at base 220 (upside) sensors configured covers 180, as shown in Fig. 4, Fig. 5 and Figure 12 (b), the support projection 227 of base 220 embeds in the recess 187 of sender unit cap 180, and the bottom lower surface 187a butt of kick 227a and recess 187.
Like this, in present embodiment, between the base 220 of fixed body 210 and the sender unit cap 180 of movable module 1, utilize the bottom lower surface 187a of recess 187 and the kick 227a of support projection 227 to form hinge portion (swing fulcrum), above-mentioned hinge portion has formed the supporting device 400 that movable module 1 can be swung with respect to fixed body 210.In the present embodiment, at the rear side of hand shaking detection sensor 170, supporting device 400 is disposed at and hand shaking detection sensor 170 overlapping position in Z-direction.
Referring again to Figure 11, base 220 is punch process product of sheet metal, when from front side, (upside) observed, in base plate 221, at outer regions 221a and be formed with between the middle section 221b of support projection 227 and be formed with towards the recess 226 of rear side depression, three sides that above-mentioned recess 226 surrounds the middle section 221b that is formed with support projection 227.In addition, in the base plate 221 of base 220, at middle section 221b, to surround the mode of three sides in the region that is formed with support projection 227, be formed with slit 228, utilize above-mentioned slit 228 to form the plate spring part 229 of extending along Y direction.Therefore, support projection 227 is formed at the front end of plate spring part 229.Therefore, in the situation that plate spring part 229 is out of shape along Z-direction, the displacement in Z-direction of supporting device 400 integral body.
At this, plate spring part 229 is than the slightly forward side in the rear surface of base 220.Therefore,, as shown in Fig. 4 (a), Fig. 4 (b), the rear surface of plate spring part 229 is positioned at front side with respect to the rear surface of base 220 and the end edge of fixed cap 260 across given size G10.
(structure of spring member 280)
Between the sender unit cap 180 of movable module 1 and base 220, dispose the spring member 280 towards base 220 application of forces to movable module 1, above-mentioned spring member 280 generations make the acting force in the direction of the bottom lower surface 187a of recess 187 and the kick 227a butt of support projection 227.Spring member 280 is leaf springs of overlooking rectangular shaped, and it is by the metal thin plates such as phosphor bronze, beryllium copper, nonmagnetic SUS class steel are carried out punch process or use the etching and processing of photolithography to form.
In spring member 280, four angle parts, be formed with the fixedly side linking part 281 linking with fixed body 210.In the present embodiment, fixedly side linking part 281 is fixed in a plurality of members that form fixed body 210, on the rear side limit component 270 shown in Fig. 4～Fig. 7.In present embodiment, in the fixedly side of spring member 280 linking part 281, be formed with aperture 281a, on the other hand, four angle parts on the face of rear side limit component 270 rear sides are formed with kick 277a.Therefore, the kick 277a of rear side limit component 270 is being embedded to the aperture 281a of spring member 280, with by behind spring member 280 and rear side limit component 270 location, by bonding, riveted joint, heating kick 277a, make the methods such as its melting fixedly side linking part 281 and fixed body 210 links.
In addition, at the middle body of spring member 280, be formed with the movable module side linking part 282 of the essentially rectangular that the sender unit cap 180 with movable module 1 links, middle section at movable module side linking part 282 is formed with circular hole 282a, and this hole 282a embeds for the outstanding circular portion 186 towards the rear of the base plate 181 of sender unit cap 180.By the method such as bonding, the movable module side linking part 282 of above-mentioned spring member 280 is fixed on to the rear surface of the base plate 181 of sender unit cap 180.
In the present embodiment, four arms 283 all extend towards circumferential same direction from fixing side linking part 281, and, four arms 283 with mutually the same shape and size around optical axis by equal angles arranged spaced.Therefore, four arms 283 are all Rotational Symmetry with 90 degree, 180 degree, 270 degree.In addition, spring member 280 has the movable module side linking part 282 consisting of the wider plate part of area, and is connected with sender unit cap 180 with wider area by above-mentioned movable module side linking part 282.Therefore, spring member 280 produces the acting force of the direction that makes the bottom lower surface 187a of recess 187 and the kick 227a butt of support projection 227, and when movable module 1 is not subject to external force, the optical axis L of movable module is held in to the posture parallel with Z axis.
Herein, at the rear side of sender unit cap 180, with reference to the first plate part 310 and second plate part 320 of the flexible base, board 300 of Fig. 9 and Figure 10 explanation, be configured between spring member 280 and base 220.Therefore, in spring member 280, in X-direction two fixedly side linking part 281 by beam portion 284, link, but in Y direction, do not form beam portion 284, fixedly between side linking part 281, there is breach.Therefore, the side in Y direction, flexible base, board 300 can be through fixedly between side linking part 281.
In addition, on the rear surface of the base plate 181 of sender unit cap 180, become recess 181e with the arm 283 of spring member 280 overlapping part in Z-direction, this recess 181e with the region of movable module side linking part 282 that is connected with spring member 280 relatively towards direction (front side) depression away from arm 283.Therefore, between the base plate 181 of sender unit cap 180 and arm 283, there is gap.Therefore, the base plate 181 of sender unit cap 180 does not contact completely with arm 283, and, even when movable module 1 swings, spring member 280 deforms, the base plate 181 of sender unit cap 180 can not contact with arm 283 yet.
(structure with magnetic driving mechanism is revised in shake)
In present embodiment, as shown in Figure 4, Figure 5, Figure 6 and Figure 7, as generation, make the hand shake correction magnetic driving mechanism of the magnetic driving force of movable module 1 swing, by make movable module 1 take magnetic driving mechanism 250x first-hand shake correction for that supporting device 400 swings around X-axis as fulcrum, make movable module 1 take second-hand that supporting device 400 swings around Y-axis for fulcrum to shake to revise and form with magnetic driving mechanism 250y, the following describes above-mentioned first-hand shake correction and shake with magnetic driving mechanism 250x and second-hand the structure that magnetic driving mechanism 250y is used in correction.
First, in movable module 1, in Y direction, the outside surface of two side plates 162 of module lid 160 opposite to one another maintains and forms first-hand shake correction and revise with magnet 240x (first-hand shake correction magnet) with the hand shake of the rectangular plate shape of magnetic driving mechanism 250x, and in X-direction, the outside surface of two other side plate 262 of fixed cap 162 opposite to one another maintains and forms second-hand and shake to revise with the hand of the rectangular plate shape of magnetic driving mechanism 250y and shake correction with magnet 240y (second-hand shakes correction magnet).Herein, hand shake is revised with magnet 240x, 240y and is formed by the tabular permanent magnet of rectangle.In the present embodiment, hand shake is revised and is consisted of two tabular permanent magnets arranging in Z-direction with magnet 240x, 240y, and in these tabular permanent magnets, outside surface side and inner surface side are magnetized to the different utmost points.In addition, in two tabular permanent magnets arranging in Z-direction, direction of magnetization is contrary.For hand, shake is revised with magnet 240x, 240y, also can on a slice permanent magnet, magnetize the two poles of the earth that opposed polarity.
In addition, in fixed body 210, in Y direction, the inside surface of two side plates 262 of fixed cap 260 opposite to one another is adhesively fixed with and forms first-hand shake correction and revise with coil 230x (first-hand shake correction coil) with the hand shake of magnetic driving mechanism 250x, and in X-direction, the inside surface of two side plates 262 of fixed cap 260 opposite to one another is adhesively fixed with and forms second-hand and shake to revise with the hand of magnetic driving mechanism 250y and shake correction with coil 230y (second-hand shakes correction coil).Above-mentioned hand shake is revised with coil 230x, 230y and is revised by magnet 240x, 240y subtend with hand shake respectively.In addition, hand shake is revised with two effective edge portions along Z-direction of coil 230x, 230y and is revised the two tabular permanent magnet subtends of arranging with magnet 240x, 240y with hand shake in Z-direction respectively.At this, hand shake is revised with each end of coil 230x, 230y and is electrically connected to outside by flexible base, board 300 or other flexible base, boards.In the side plate 262 of fixed cap 260, be formed with less peristome 262a, this peristome 262a for strengthening the coating etc. of the bonding agent of use after hand shake correction is fixed on to side plate 262 with coil 230x, 230y.
Like this, in present embodiment, formed in Y direction and formed magnetic driving mechanism 250x for first-hand shake correction a pair of and that movable module 1 is swung around X-axis across two relative positions of supporting device 400, in first-hand shake correction, with in magnetic driving mechanism 250x, two hand shakes are revised and with coil 230x, by distribution, are connected into the magnetic driving force towards same direction when switching on, movable module 1 being produced around X-axis.Therefore,, when revising with coil 230x energising to two hand shakes, two first-hand shake corrections apply the moment towards same direction around the X-axis through supporting device 400 with magnetic driving mechanism 250x to movable module 1.In addition, in present embodiment, formed in X-direction and formed a pair of and make movable module 1 shake magnetic driving mechanism 250y for correction around the second-hand of Y-axis swing across two relative positions of supporting device 400, second-hand, shake and revise with in magnetic driving mechanism 250y, two hand shakes are revised and with coil 230y, by distribution, are connected into the magnetic driving force towards same direction when switching on, movable module 1 being produced around Y-axis.Therefore,, when revising with coil 230y energising to two hand shakes, two second-hands shake to revise with magnetic driving mechanism 250y movable module 1 are applied to the moment towards same direction around the Y-axis through supporting device 400.
In the present embodiment, module lid 160 consists of magnetic, and works with the yoke that magnet 240x, 240y use as hand shake correction.In addition, the rear end of module lid 160 be formed with must be less towards outside bending bend 169, this bend 169 plays the function that improves poly-magnetic property.
Be equiped with in the band camera mobile phone of the optical unit 200 with shake correcting function of such formation, the hand shaking detection sensors 170 such as gyrosensor that hand shake while being used for shooting detects are installed in movable module 1, according to the testing result of this hand shaking detection sensor 170, be installed in to shake to revise with coil 230x and hand shake correction with the control part opponent on camera mobile phone and switch on by one or both in coil 230y, make one or both swing in X-axis and Y-axis of movable module 1.If this is swung and is synthesized, can make movable module 1 with respect to XY face Integral swinging.Therefore, contingent all hands shake such as correction tape camera mobile phone reliably.
In order to carry out above-mentioned hand shake, revise, in present embodiment, hand shaking detection sensor 170 is installed in to movable module 200 own, control part (not shown) is shaken to revise with magnetic driving mechanism 250x and second-hand to first-hand shake correction and is carried out closed-loop control with magnetic driving mechanism 250y, so that be zero by hand shaking detection sensor 170 detected angular velocity.In addition, control part (not shown) is shaken to revise with magnetic driving mechanism 250x and second-hand to first-hand shake correction and is carried out closed-loop control with magnetic driving mechanism 250y so that by the integrated value of hand shaking detection sensor 170 detected angular velocity, be that angle correcting is zero.
Herein, shaking detection sensor 170 is installed in movable module 1.Therefore, the shake of optical axis L is directly detected by shaking detection sensor 170, thereby can revise accurately shake.
In addition, owing to swinging centered by the supporting device 400 that movable module 1 is formed by the rear side in movable module 1, so the distortion of flexible base, board 300 is minimum.Therefore, recovery of shape power during flexible base, board 300 distortion is little, can make movable module 1 promptly swing.
At this, when usining the swing fulcrum (hinge portion) of supporting device 400 during as benchmark, magnetic force to the magnetic force center position of movable module 1 effect (center with magnet 240x, 240y is revised in hand shake) position in Z-direction than the center of the Z-direction of movable module 1 and with the forward side in center of the Z-direction of the optical unit 200 of shake correcting function (away from position).Therefore, having advantages of that first-hand shake correction shakes to revise with magnetic driving mechanism 250y with magnetic driving mechanism 250x and second-hand makes the required magnetic driving force of movable module 1 swing can be less.
On the other hand, using the swing fulcrum (hinge portion) of supporting device 400 during as benchmark, if magnetic force to the magnetic force center position of movable module 1 effect the position in Z-direction than the center of the Z-direction of movable module 1 and with the center of the Z-direction of the optical unit 200 of shake correcting function by rear side (nearer position), can make with minimum displacement movable module 1 significantly swing, therefore, have advantages of that the response that hand shake revises is good.
(structure of the movable range limiting mechanism of movable module 1 use)
Figure 13 is the key diagram of the member of the application movable range that limits movable module 1 in the optical unit 200 with shake correcting function of the present invention, and Figure 13 (a), Figure 13 (b), Figure 13 (c), Figure 13 (d) observe the exploded perspective view that configures the stereographic map of the state after rear side limit component 270 and front side limit component 290, the stereographic map of observing from rear side, the exploded perspective view of observing from front side and observe from rear side in movable module 1 from front side.Figure 14 is the key diagram of the mechanism of the application movable range that limits movable module 1 in the optical unit 200 with shake correcting function of the present invention, Figure 14 (a), Figure 14 (b), Figure 14 (c) be respectively from front side observe the application optical unit with shake correcting function of the present invention movable module configure the state after rear side limit component vertical view, through in Fig. 1 (a) with near the Y2-Y2 ' cut-open view bight of the optical unit 200 of shake correcting function, pass Fig. 1 (a) in near the X2-X2 ' cut-open view bight of the optical unit 200 of shake correcting function.
As shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Figure 13, in the present embodiment, surrounding in movable module 1 disposes rectangular box-like front side limit component 290 and rear side limit component 270, utilize these front side limit components 290 and rear side limit component 270 limit the both direction of movable module 1 in X-direction, the both direction in Y direction, the both direction in Z-direction, around the both direction of X-axis, around the both direction of Y-axis with around the movable range of the both direction of Z axis.
First, as shown in Figure 14 (a), Figure 14 (b), Figure 14 (c), while observing from front side, rear side limit component 270 comprises respectively inwall 272a and inwall 272b four angle parts, it is relative that the teat 103 that stretch out along X-direction and Y direction inwall 272a and angle part in movable module 1 separates minimum clearance G X1 in the outside of X-direction, and it is relative that inwall 272b and teat 103 separate minimum clearance G Y1 in the outside of Y direction.Therefore, the both direction of movable module 1 in X-direction, the both direction in Y direction, around the both direction of X-axis, be limited around the both direction of Y-axis with around the movable range of the both direction of Z axis.Therefore, to movable module 1 in the situation that the both direction in X-direction, both direction in Y direction, around the both direction of X-axis, around the both direction of Y-axis and a part of movable range in the movable range of the both direction of Z axis, limit, also as long as adopt identical structure.
Then,, as shown in Figure 14 (b), Figure 14 (c), rear side limit component 270 comprises with teat 103 at the relative plate-like portion 274 of the rear side of Z-direction.In addition, the bight 297 of the frame of front side limit component 290 part is relative in the front side of Z-direction with teat 103.Therefore, the movable range of the both direction of movable module 1 in Z-direction is limited.
Herein, front side limit component 290 and rear side limit component 270 are resinous, different when processed from metal, have impact absorbency and absorption of vibrations.Therefore,, even if movable module 1 and front side limit component 290 and rear side limit component 270 butts can not produce unnecessary sound and vibration yet, vibration can be towards around propagating yet.From above-mentioned viewpoint, can find out, also can will in front side limit component 290 and rear side limit component 270, at least make with vulcanie with the part of teat 103 butts.In addition, also can in front side limit component 290 and rear side limit component 270, paste rubber system, resinous snubber material with the part of teat 103 butts.In position-limit mechanism, as long as the side in the part of interfering each other has snubber, therefore,, in movable module 1 side, can will make rubber system, resinous structure or the rubber system of stickup, resinous snubber material with the part of fixed body 210 interference.
Like this, in the present embodiment, projection 103, rear side limit component 270 and front side limit component 290 have formed position-limit mechanism, this limit component is in Z-direction, utilize hand shake to revise and use magnet 240x, 240y and hand shake are revised and are used coil 230x, the narrow and small space of vacating existing between the position of 230y in Z-direction and the position of supporting device 400 in Z-direction, limit the both direction of movable module 1 in X-direction, both direction in Y direction, both direction in Z-direction, both direction around X-axis, around the both direction of Y-axis and around the movable range of the both direction of Z axis.
In addition, in the supporting device 400 shown in Fig. 4, Fig. 5 and Figure 12, the support projection 227 of base 220 embeds in the recess 187 of sender unit cap 180, in present embodiment, this supporting device 400 has also limited the both direction of movable module 1 in X-direction and the movable range of the both direction in Y direction.That is, as shown in Figure 4, between the outer peripheral face of support projection 227 and the inner peripheral surface of recess 187, in X-direction overhead, open minimum clearance G X2, in Y direction overhead, open minimum clearance G Y2.
In addition, in the supporting device 400 shown in Fig. 4, Fig. 5 and Figure 12, the bottom lower surface 187a butt of the kick 227a of the support projection 227 of base 220 and recess 187, this supporting device 400 has also limited the movement towards Z-direction rear side of movable module 1.Herein, when movable module 1 is because the impact of dropping etc. is towards Z-direction rear side sharply during displacement, until the teat 103 of movable module 1 and plate-like portion 274 butts of rear side limit component 270, the load centralization of the bottom lower surface 187a of kick 227a and recess 187, the bottom lower surface 187a of kick 227a and recess 187 may be out of shape.Yet in the present embodiment, because support projection 227 is formed on base 220 leading section of the plate spring part 229 forming, therefore, when movable module 1 is during towards the rear side displacement of Z-direction, supporting device 400 integral body are along Z-direction displacement.Therefore, when be subject to dropping etc. impact time, even the load centralization of the bottom lower surface 187a of kick 227a and recess 187, the bottom lower surface 187a of kick 227a and recess 187 can not be out of shape yet.
Herein, as shown in Fig. 4 (a), Fig. 4 (b), plate spring part 229 separates given size G10 with respect to the rear surface of base 220 and the end edge of fixed cap 260 and is positioned at front side.Therefore, though movable module 1 because of the sharply displacement of rear side towards Z-direction such as the impact of dropping etc., plate spring part 229 is towards rear side displacement, plate spring part 229 can not be projected into rear side from the rear surface of base 220 and the end edge of fixed cap 260 yet.
(with the manufacture method 1 of the optical unit 200 of shake correcting function)
In the manufacture method of the optical unit 200 with shake correcting function of present embodiment, when assembling the part relevant to position-limit mechanism, first, with fixed body 210 in the rear side limit component 270 that uses across the mode of specified gap (clearance G X1, GY1 shown in Figure 14 (a), Figure 14 (b), Figure 14 (c)), configure the sender unit cap 180 using in movable module 1.Now, use image processing apparatus etc. to carry out the supervision in gap.
Then, mounting spring member 280 in rear side limit component 270 (fixed body 210) and movable module 1.At this, if guarantee there are enough gaps between the kick 277a of rear side limit component 270 and the aperture 281a of spring member 280, can absorb the scale error of each member.In addition, because spring member 280 and sender unit cap 180 are connected to each other at plate part, therefore, by the movable module side linking part 282 of regulating spring member 280 and the relative position of sender unit cap 180, also can absorb the scale error of each member.
According to said method, can between movable module 1 and fixed body 210, guarantee the gap of regulation, thereby can form accurately position-limit mechanism.
(with the manufacture method 2 of the optical unit 200 of shake correcting function)
In order to manufacture the optical unit 200 with shake correcting function of present embodiment, after the sender unit cap using in movable module 1 180 and spring member 280 are linked, with fixed body 210 in the rear side limit component 270 that uses across the mode of specified gap (clearance G X1, GY1 shown in Figure 14 (a), Figure 14 (b), Figure 14 (c)), configure movable module 1.Now, also use image processing apparatus etc. to carry out the supervision in gap.Then, fixed body 210 and spring member 280 are linked.At this, if guarantee there are enough gaps between the kick 277a of rear side limit component 270 and the aperture 281a of spring member 280, can absorb the scale error of each member.According to said method, can between movable module 1 and fixed body 210, guarantee the gap of regulation, thereby can form accurately position-limit mechanism.
(with the manufacture method 3 of the optical unit 200 of shake correcting function)
In order to manufacture the optical unit 200 with shake correcting function of present embodiment, after the rear side limit component using in fixed body 210 270 and spring member 280 are linked, to configure movable module 1 with fixed body 210 across the mode of specified gap (clearance G X1, GY1 shown in Figure 14 (a), Figure 14 (b), Figure 14 (c)).Now, also use image processing apparatus etc. to carry out the supervision in gap.Then, movable module 1 and spring member 280 are linked.Now, because spring member 280 and sender unit cap 180 are connected to each other at plate part, therefore, by the movable module side linking part 282 of regulating spring member 280 and the relative position of sender unit cap 180, can absorb the scale error of each member.According to said method, can between movable module 1 and fixed body 210, guarantee the gap of regulation, thereby can form accurately position-limit mechanism.
(the main effect of present embodiment)
As mentioned above, in the optical unit 200 with shake correcting function of present embodiment, in Y direction, across two positions of the both sides of support projection 227, dispose two magnetic driving mechanism 250x for paired first-hand shake correction, and in X-direction, across two positions of the both sides of support projection 227, dispose two paired second-hands and shake and revise with magnetic driving mechanism 250y.In addition, two first-hand shake corrections produce respectively the magnetic force that movable module 1 is swung towards same direction with magnetic driving mechanism 250x, and two second-hands shake to revise with magnetic driving mechanism 250y and produce respectively the magnetic force that movable module 1 is swung towards same direction.Therefore, for configuring first-hand shake correction from a side in support projection 227, the structure of magnetic driving mechanism 250x, a side configuration second-hand in support projection 227 shake to revise and use the structure of magnetic driving mechanism 250y different, its driving force is stable, thereby can revise accurately hand shake.For example, two first-hand shake corrections are with in magnetic driving mechanism 250x, form first-hand shake correction with the hand shake of magnetic driving mechanism 250x revise with magnet 240x and hand shake correction with the position relationship of coil 230x when two first-hand shake corrections are partial to the side in magnetic driving mechanism 250x the direction that magnetic driving force diminishes, in another first-hand shake correction, with being partial to first-hand shake correction of correction in magnetic driving mechanism 250x, with the hand shake of magnetic driving mechanism 250x, revising and use magnet 240x and hand to shake the direction of revising with the dislocation of coil 230x, be that magnetic driving force becomes large direction, therefore, first-hand shake correction is stable by the driving force of magnetic driving mechanism 250x.Above-mentioned effect is shaken and is revised with magnetic driving mechanism 250y too for second-hand.
In addition, because hand shaking detection sensor 170 is installed in movable module 1, therefore, can utilize shaking detection sensor 170 directly the shake of optical axis L to be detected.So, can revise accurately the hand shake of movable module 1.Yet, when hand shaking detection sensor 170 is installed in to movable module 1, correspondingly, at aspects such as drawing of flexible base, board 300, it is complicated that the structure of movable module 1 can become, but in the present embodiment, owing to using module lid 160 and sender unit cap 180 in movable module 1, therefore, the assembling of movable module 1 is easy.In addition, when module lid 160 is linked with sender unit cap 180, owing to having utilized from module lid 160 and sender unit cap 180 side-prominent module lid side flange portion 168 and sender unit cap side flange portion 188 outwardly, therefore, module lid 160 is easy with link and the decomposition of sender unit cap 180.So the assembling of movable module 1 is easy.In addition, even if in the situation that assembling produces fault during movable module 1, also can easily decompose movable module 1, to reclaim shaking detection sensor 170 that price is high and by its recycling.
In addition, in the present embodiment, module lid side flange portion 168 connects to by screw 198 with sender unit cap side flange portion 188 can dismounting.Therefore, can more easily decompose movable module 1, to reclaim shaking detection sensor 170 and by its recycling.And the axial region of screw 198 is fixed at the cylindrical member 199 that is provided with the screw hole screwing togather for screw 198 interior week.Therefore, without forming screw hole in module lid side flange portion 168 and sender unit cap side flange portion 188, so, can make module lid side flange portion 168 and sender unit cap side flange portion 188 thin plates, in addition, module lid 160 and sender unit cap 180 thin plates can also be made, thereby miniaturization, the lightweight of movable module 1 can be realized.
In addition, rectangular shaped when movable module 1 is observed from optical axis L direction, module lid side flange portion 168 and sender unit cap side flange portion 188 stretch out in the angle part of rectangular shape.Therefore, partial fixing module lid side flange portion 168 and sender unit cap side flange portion 188 without the limit portion that is equivalent in movable module 1, so, can utilize the part that is equivalent to limit portion of movable module 1 to configure shake and revise with magnetic driving mechanism (first-hand shake correction is shaken correction use magnetic driving mechanism 250y with magnetic driving mechanism 250x and second-hand).
In addition, outside in movable module 1 is formed with teat 103 by module lid side flange portion 168 and sender unit cap side flange portion 188, therefore, utilize this teat 103, front side limit component 290, rear side limit component 270 to form position-limit mechanisms, this position-limit mechanism limits the both direction of movable module 1 in X-direction, the both direction in Y direction, the both direction in Z-direction, around the both direction of X-axis, around the both direction of Y-axis with around the movable range of the both direction of Z axis.Therefore, movable not excessively displacement of module 1, thus can prevent the plastic yield etc. of spring member 280.In addition, because teat 103 forms the biplate structure of module lid side flange portion 168 and sender unit cap side flange portion 188, therefore, for forming position-limit mechanism, there is enough intensity.Therefore, can make module lid side flange portion 168 and sender unit cap side flange portion 188 thin plates, in addition, can also make module lid 160 and sender unit cap 180 thin plates, thereby can realize miniaturization, the lightweight of movable module 1.
Especially in the present embodiment, utilize the teat 103 stretching out in the angle part of movable module 1 to form position-limit mechanisms, when movable module 1 is during around X-axis, Y-axis and Z axis displacement, the action of above-mentioned angle part is maximum in angle part.So, in angle part, for teat 103 and the gap size of fixed body 210 (front side limit component 290, rear side limit component 270), allow larger error, therefore, assembling is easy, and can correctly set movable range.
In addition, for movable module 1 can be swung, between the base 220 of fixed body 210 and the sender unit cap 180 of movable module 1, form the supporting device 400 that comprises hinge portion, therefore, can prevent the displacement in Z-direction of movable module 1.In addition, the leaf spring of the universal reed shape using as spring member 280 comprises longer arm 283, and therefore, deflection (addendum modification) is higher with the linearity of spring force, easily carries out the shake correction of movable module.
In addition, sender unit cap 180 is metal, and the rear side of opponent's shaking detection sensor 170 shields.In addition, sheet metal (shield member) 380 is located between hand shaking detection sensor 170 and imaging apparatus 15, thereby also plays the function that the lower face side of imaging apparatus 15 is shielded.Therefore, can prevent reliably abnormal, the abnormal generation that causes because of the electromagnetic wave noise sending from shaking detection sensor 170 because entering from outside that the electromagnetic wave noise of shaking detection sensor 170 causes.
In addition, because shaking detection sensor 170 is disposed at the rear end of movable module 1, and to cover the mode of above-mentioned shaking detection sensor 170 with rear side, metal sender unit cap 180 is installed on to movable module 1, therefore, sender unit cap 180 forms the last end of movable module 1.So metal sender unit cap 180 works as shield member, and the carrier for supporting (recess 187) while having played the supporting device 400 that forms movable module 1 use, with other functions such as linking part of spring member 280.Therefore, can prevent reliably abnormal, the abnormal generation that causes because of the electromagnetic wave noise sending from shaking detection sensor 170 because entering from outside that the electromagnetic wave noise of shaking detection sensor 170 causes with less number of components.
In addition, in the present embodiment, in the first shake correction, with magnetic driving mechanism 250x and the second shake correction, use any one in magnetic driving mechanism 250y, magnet (hand shake is revised with magnet 240x, 240y) is remained on as movable module 1 side on movable side, and coil (hand shake is revised with coil 230x, 230y) is remained on to fixed body 210 sides, due to the distribution number of the movable module 1 for as movable side less also can, therefore can make distribution structure simplify.In addition, if in fixed body 210 sides, owing to increasing shake, revise the winding number with coil 230x, 230y, therefore can bring into play very large driving force.
(about another embodiment 1 of position-limit mechanism)
Figure 15 is the key diagram of another embodiment 1 of applying the position-limit mechanism of the optical unit 200 with shake correcting function of the present invention, and Figure 15 (a), Figure 15 (b), Figure 15 (c) are respectively the cut-open views that exploded perspective view, the cut-open view of observing fixed cap 260 and module lid 160 from the front side of Z-direction and the part that will form position-limit mechanism amplify.The basic structure of another embodiment of present embodiment 1 and following explanation is with identical with reference to the structure of Fig. 1～Figure 14 explanation.So, for common part, mark identical symbol and illustrate, and the description thereof will be omitted.
As shown in figure 15, in the present embodiment, the peristome 261a forming in the top plate portion 261 of fixed cap 260 is the slightly large circular hole of peristome 161a forming than in the top plate portion 161 in module lid 160.Therefore, the top plate portion 261 of fixed cap 260 is at the top plate portion 161 of the front side of Z-direction overlay module lid 160.So, in the optical unit 200 with shake correcting function of present embodiment, utilize top plate portion 161,261 as the position-limit mechanism that the movable range towards Z-direction front side of movable module 1 is limited.
In addition, in the top plate portion 161 of module lid 160, with near the opening edge of the top plate portion 261 of fixed cap 260, across the part of clearance G Z11 subtend, be to using swing fulcrum (forming the hinge portion of the supporting device 400) side of movable module 1 as the arc surface 161s at center, near the butt of opening edge of this arc surface 161s and top plate portion 261 is to play the effect of locating part.Therefore,, even if when movable module 1 tilts, also can correctly limit the movable range towards Z-direction front side of movable module 1.Arc surface 161s forms by module lid 160 is carried out to punch process, but also can adopt structure snubber material of resin or vulcanie system being pasted on module lid 160 etc.In addition, in the situation that utilizing fixed cap 260 as locating part, can form in fixed cap 260 at least the part with arc surface 161s butt by punch process, but also can adopt structure snubber material of resin or vulcanie system being pasted on fixed cap 260 etc.
(about another embodiment 2 of position-limit mechanism)
Figure 16 is the key diagram of another embodiment 2 of applying the position-limit mechanism of the optical unit 200 with shake correcting function of the present invention, and Figure 16 (a), Figure 16 (b), Figure 16 (c) observe exploded perspective view, the cut-open view of fixed cap 260 and module lid 160 and will form the cut-open view that the part of position-limit mechanism is amplified from the rear side of Z-direction.
As shown in figure 16, in the optical unit 200 with shake correcting function of present embodiment, the angle part that enters that utilization connects the angle of top plate portion 261 and the angle of side plate 262 in the inner side of fixed cap 260 is connected the angle part that in the angle of top plate portion 161 and the bight of side plate 162 with the outside in module lid 160, as the position-limit mechanism that the movable range towards Z-direction front side of movable module 1 is limited.At this, the banking stop 267 (snubber material) that angle part is adhesively fixed with resin or vulcanie system that enters at fixed cap 260, in banking stop 267, across the surface of clearance G Z12 subtend, be to using the swing fulcrum hinge portion of supporting device 400 (form) side of movable module 1 as the arc surface 267s at center with the angle part that goes out of module lid 160, above-mentioned arc surface 267s and module lid 160 go out angle part butt to play the effect of locating part.Therefore,, even if when movable module 1 tilts, also can correctly limit the movable range towards Z-direction front side of movable module 1.
(about another embodiment 3 of position-limit mechanism)
Figure 17 is the key diagram of another embodiment 3 of applying the position-limit mechanism of the optical unit 200 with shake correcting function of the present invention, is the stereographic map of module lid 160 and sender unit cap 180.
As shown in figure 17, in the optical unit 200 with shake correcting function of present embodiment, in the part that is equivalent to limit portion of movable module 1, have towards the outstanding teat 104 of the direction (being the direction with Z-direction quadrature in present embodiment) of intersecting with Z-direction.So, if the abutment portion that teat 104 is clamped in the both sides in Z-direction is formed at fixed body 210, can form the position-limit mechanism that the movable range of the both direction in Z-direction to movable module 1 limits.If form like this, while observing from Z-direction, teat 104 is positioned on the X-direction of movable module 1 and the oscillation centre line of Y direction, even if movable module 1 swings, the displacement in Z-direction is also less.Therefore, can correctly limit the movable range of the Z-direction of movable module 1.
(about another embodiment 4 of position-limit mechanism)
Figure 18 is the key diagram of another embodiment 4 of applying the position-limit mechanism of the optical unit 200 with shake correcting function of the present invention, is the stereographic map of module lid 160 and sender unit cap 180.
As shown in figure 18, in the optical unit 200 with shake correcting function of present embodiment, in the bight from movable module 1, outstanding teat 103 is formed with the breach 103a of slit-shaped.So, if the projection that is positioned at breach 103a is formed to fixed body 210, can form the position-limit mechanism that the movable range around Z axis of movable module 1 is limited.
(about another embodiment 5 of position-limit mechanism)
Figure 19 is the key diagram of another embodiment 5 of applying the position-limit mechanism of the optical unit 200 with shake correcting function of the present invention, is the major part cut-open view with the optical unit 200 of shake correcting function.
As shown in figure 19, in the optical unit 200 with shake correcting function of present embodiment, the hand consisting of the hollow coil shake correction of inside surface that is fixed in the side plate 262 of fixed cap 220, with the inner side of coil 230x, 230y, be formed with teat 164, this teat 164 is revised with coil 230x, 230y and is inwards given prominence to than hand shake.Therefore, the shake of teat 164 and hand is revised with magnet 240x, 240y and is formed position-limit mechanism, this position-limit mechanism limits the movable range of the both direction of movable module 1 in X-direction, the movable range of the both direction in Y direction, around the movable range of the both direction of X-axis and around the movable range of the both direction of Y-axis.If form like this, can prevent from reliably that hand shake from revising with coil 230x, 230y to revise the butt with magnet 240x, 240y with hand shake, thereby can prevent reliably that hand shake from revising the broken string etc. of using coil 230x, 230y.Such teat 164 is such as being to form by the snubber material such as resin sheet, vulcanie sheet of inside surface that is fixed in the side plate 162 of fixed cap 160 being pasted on to the inside surface of the side plate 262 of fixed cap 220.In order to limit the movable range of the movable range of the both direction of movable module 1 in X-direction, both direction in Y direction, around the movable range of the both direction of X-axis and a part of movable range in the movable range of the both direction of Y-axis, also can utilize teat 164 and hand shake to revise with magnet 240x, 240y.
(towards the installing structure of optical device)
Figure 20 is the key diagram that is equiped with the optical device 500 of applying the optical unit 200 with shake correcting function of the present invention.
As shown in figure 20, for the optical unit 200 with shake correcting function of present embodiment is installed in to optical device 500, comparatively it is desirable to, the optical unit with shake correcting function 200 is installed in to optical device main body across snubber material 510,520,530.At this, snubber material 520 is disposed at the side with the X-direction of the optical unit 200 of shake correcting function, snubber material 530 is disposed at the rear side with the Z-direction of the optical unit 200 of shake correcting function, and snubber material 510 is disposed at the front side with the Z-direction of the optical unit 200 of shake correcting function.
At this, in snubber material 510, be formed with peristome 511, this peristome 511 is injected the optical unit 200 with shake correcting function for making from the light of subject.In addition, snubber material 510 have can cover tape the size of front end face integral body of optical unit 200 of shake correcting function.
Also can make the peristome 261a of the fixed cap 260 that the part of snubber material 510 used from the optical unit 200 with shake correcting function enter inner side, using and utilize this part as the locating part of movable module 1 use.On the contrary, also can in movable module 1, arrange can be from the peristome 261a of fixed cap 260 side-prominent projection outwardly, to utilize this projection and snubber material 510 to form position-limit mechanisms.In addition, also can on fixed cap 260, not form top plate portion 261, and make snubber material 510 and movable module 1 subtend in Z-direction, snubber material 510 is worked as the locating part of movable module 1 use.
(other embodiments)
(structure with magnetic driving mechanism is revised in hand shake)
In above-mentioned embodiment, as hand, shake is revised and is used magnetic driving mechanism, movable module 1 is provided with to first-hand shake correction shakes and revises with magnetic driving mechanism 250y with magnetic driving mechanism 250x and second-hand, but with magnetic driving mechanism 250x and second-hand, shake under the situation of revising the shake that easily produces the direction that hand shakes with in magnetic driving mechanism 250y when only revising user and use applying the present invention to only to arrange first-hand shake correction, first-hand shake correction also can be only set shakes and revises with magnetic driving mechanism 250y with magnetic driving mechanism 250x or second-hand, make its both sides in support projection 227 take two as a pair of.In this case, adopt the structure that direction is defined in Y direction of drawing of flexible base, board 300.
In the above-described embodiment, in first-hand shake correction, with magnetic driving mechanism 250x and second-hand, shake to revise with all adopting in magnetic driving mechanism 250y magnet (hand shake is revised with magnet 240x, 240y) is remained on as movable module 1 side on movable side, and coil (hand shake revise for coil 230x, 230y) is remained on to the structure of fixed body 210 sides, but also can adopt, hand shake is revised with coil and remained on as movable module 1 side on movable side, and hand shake is revised to the structure that remains on fixed body 210 sides with magnet.
(structure of force application component)
In above-mentioned embodiment, as force application component, used the spring member 280 comprising each other towards circumferential linearly extended many arms 287 of same direction, but so long as many structures that arm 287 extends towards same direction, the structure that also can adopt arm 287 limit curved edges to extend.
In above-mentioned embodiment, as for the force application component towards base 220 application of forces by movable module 1, only used spring member 280, but as this force application component, also can use by magneticaction by movable module 1 towards the magnetic spring of base 220 application of forces, by mechanism by movable module 1 spring member towards base 220 application of forces.In addition, as magnetic spring, adopt hand shake in fixed body 210 to revise the structure with the rear side configuration magnetic of magnet 240x, 240y.While forming like this, can maintain reliably the state that movable module 1 is supported mechanism's 400 supportings.In addition, stop the neutrality of driving with magnetic driving mechanism hand shake correction during, utilize magnetic spring by movable module 1 towards base 220 application of forces, as for spring member 280, can make it in not producing the non-deformation state of acting force.If form like this,, when movable module 1 swings, spring member 280 distortion, produce acting force.That is,, during movable module 1 is non-oscillatory, spring member 280 keeps even shape.Therefore, the deflection that can effectively utilize power that spring member 280 is subject to and spring member 280 has the part of the linearity, therefore, can make movable module 1 swing suitably, thereby can carry out reliably hand shake, revises.
In the present invention, comparatively it is desirable in spring member 280, at arm 283 and coupling part, the arm 283 of fixation side linking part 281, be connected with the absorption of vibrations materials such as gel rubber material, elastic sheet material with coupling part or arm 283 integral body of movable module side linking part 282, if take such measure, when being swung, movable module 1 can make the vibration of arm 283 stop rapidly, therefore, also can make the vibration of movable module 1 stop rapidly.
(swinging the structure of fulcrum)
In the above-described embodiment, at the front end of support projection 227, be formed with kick 227a, but also can support projection 227 integral body formed hemispherical.In addition, in above-mentioned embodiment, on base 220, be formed with support projection 227, on sender unit cap 180, be formed with recess 187, but also can on sender unit cap 180, form support projection, on base 220, form the recess of accepting support projection.
(structure of supporting device)
In the situation that adopting this structure, even if hinge portion that the oscillation centre of movable module 1 is limited etc. is not set, also movable module 1 can be supported to and can swings.
In addition, also can not use hinge portion and use spring member 280 of the leaf-spring-like shown in one or more pieces Fig. 6 etc., so that movable module 1 is supported to and can be swung.The situation that adopts this structure also with use the situation of hoist cable identical, even if hinge portion that the oscillation centre of movable module 1 is limited etc. is not set, also movable module 1 can be supported to and can swings.In order to adopt said structure, in the situation that with the movable module 1 of spring member 280 supporting of a slice leaf-spring-like, movable module 1 is usingd the position being connected with spring member 280 and is swung as center.For example, in the situation that the end of the optical axis direction of movable module 1 is connected with spring member 280, movable module 1 is usingd above-mentioned end and is swung as center.In addition, in the situation that the center section of the optical axis direction of movable module 1 is connected with spring member 280, movable module 1 is usingd this center section and is swung as center.On the other hand, in the situation that be connected with respectively the spring member 280 of two leaf-spring-like along two places of optical axis direction separation in movable module 1, movable module 1 is usingd to be connected with between the position of two flat spring members 280 and is swung as center.
(other structure)
In above-mentioned embodiment, apply the present invention to use lens drive with coil 30s, 30t be square tube shape, lens drive and are the optical unit 200 with shake correcting function of flat lens driving module 1a with magnet 17, but also can apply the present invention to use lens driving to be with coil 30s, 30t the optical unit with shake correcting function that cylindric, housing 18 is square tube shape and disposes the movable module of magnet 17 for lens driving in the angle part of housing 18.
In above-mentioned embodiment, what illustrate is the example that applies the present invention to the optical unit 200 with shake correcting function that the mobile phone with camera uses, but the example that applies the present invention to the optical unit 200 with shake correcting function that slim digital camera etc. uses also can be described.In addition, in above-mentioned embodiment, what illustrate is except lens 121 and imaging apparatus 15, also at supporting mass 2 upper supports, to have along optical axis L direction and carry out the example of the lens actuating device 5 of magnetic driving to comprising the moving body 3 of lens 121 in movable module 1, but also can apply the present invention to the optical unit with shake correcting function that movable module 1 is not installed the fixed focus-type of lens actuating device 5.
In addition, except mobile phone, digital camera etc., apply the optical unit 200 with shake correcting function of the present invention and also can be fixed on refrigerator etc. in certain intervals has the device of vibration, by being arranged to carry out remote-controlled operation, and for for example obtaining the service of the information of refrigerator inside when doing shopping in the destination of going out.In above-mentioned service, owing to being photographic system with stable posture gasifying device, therefore, even if there is the vibration of refrigerator also can transmit stable image.In addition, also this device can be fixed on the equipment using in the upper class hours such as children, student's school bag, two braces school bag or cap.In this case, when at certain intervals situation around being photographed, and while transmitting image towards pre-determined server, the head of a family can be by observing in place at a distance the safety that this image is guaranteed child.In such use, even if camera produces vibration when unconsciously moving, also can shoot image clearly.In addition, if be also equiped with GPS except camera module, the person's that also can obtain object position simultaneously, when just in case while having an accident, can moment carry out the confirmation of place and situation.In addition, if by the application optical unit 200 with shake correcting function of the present invention be installed in automobile before the position that can photograph, can be used as automobile travel recorder.In addition, also the application optical unit 200 with shake correcting function of the present invention can be installed in automobile before the position that can photograph, thereby automatically the image of periphery is photographed at certain intervals, and be automatically sent to definite server.In addition, by making to apply the congestion information with the optical unit 200 of shake correcting function and the VICS (Vehicle Information and Communication System/ Vehicle Information and Communication System) of on-vehicle navigation apparatus etc. of the present invention, link and send this image, thereby the state blocking up can be provided in more detail.According to above-mentioned service, identical with the automobile travel recorder of automobile installing, the situation that the third party who unconsciously by chance passes through records while having an accident etc., contributes to the investigation of situation.In addition, can be not by the vibration effect of automobile obtain image clearly.The in the situation that of such use, when switching on power, towards control part 800 output instruction signals, and start hand shake control according to above-mentioned command signal.
In addition, apply the optical unit 200 with shake correcting function of the present invention also can be used in laser pen, carry with and the projection display equipment of vehicle mounted, direct viewing type display device etc. penetrate the shake correction of the optical device of light.In addition also can in the powerful observations such as astronomical telescope system or binoculus system, for not using the auxiliary fixing devices such as tripod, observe.In addition, by stationery or soupspoon etc. being made as to movable part, as hand, have deformity can not stop hand shaking the support of living of such physical disabilities person's auxiliary implement.In addition, by the optical unit 200 with shake correcting function of the present invention being used in to the gun barrel of sniping the rifle of use or tank etc., the stabilization of the vibration of posture when triggering can be realized, therefore, accuracy at target can be improved.
Claims (31)
1. with an optical unit for shake correcting function, comprising:
Movable module is equiped with optical element in this movable module;
Fixed body, this fixed body supports described movable module;
Shaking detection sensor, this shaking detection sensor detects rocking of described movable module; And
Shake correction is used magnetic driving mechanism, and this shake correction swings to revise the shake of this movable module described movable module with magnetic driving mechanism according to the testing result of described shaking detection sensor on described fixed body, it is characterized in that,
Have spring member, this spring member is connected with described movable module with described fixed body,
Using three directions orthogonal in described fixed body respectively as X-axis, Y-axis, Z axis, and during using the direction along described optical axis as Z axis, between described movable module and described fixed body, form limited location mechanism, this position-limit mechanism to described movable module two directions in X-direction, two directions in Y direction, two directions in Z-direction, around two directions of X-axis, limit around two directions of Y-axis and around the movable range causing because of described shake of two directions of Z axis
Described movable module is included in teat outstanding in X-direction, Y direction (103),
Described position-limit mechanism consists of described teat (103), rear side limit component (270) and front side limit component (290),
When observing from Z-direction, described rear side limit component (270) comprises respectively inwall (272a) and inwall (272b) four angle parts, wherein, the described teat (103) that stretch out along X-direction and Y direction described inwall (272a) and angle part in described movable module (1) separates minimum gap (GX1) in the outside of X-direction relative, described inwall (272b) separates minimum gap (GY1) in the outside of Y direction with teat (103) relative
Described rear side limit component (270) comprises with described teat (103) at the relative plate-like portion of the rear side of Z-direction (274),
The bight (297) of the frame part of described front side limit component (290) is relative in the front side of Z-direction with described teat (103).
2. the optical unit with shake correcting function as claimed in claim 1, is characterized in that,
When observing from Z-direction, described movable module is shaped as rectangle,
In described position-limit mechanism, described movable module around the movable range of two directions of X-axis, the angle part observed when observing described But moving die piece from Z-direction around the movable range of two directions of Y-axis and at least one movable range in the movable range of two directions of Z axis be limited in described teat and be located at described fixed body can the part with described teat butt between.
3. the optical unit with shake correcting function as claimed in claim 2, is characterized in that,
In described position-limit mechanism, the movable range of two directions of described movable module in X-direction and the movable range of two directions in Y direction be limited in described teat and be located at described fixed body can the part with described teat butt between.
4. the optical unit with shake correcting function as claimed in claim 3, is characterized in that,
Described projection is disposed at and forms described shake correction with between the position in the Z-direction of the position in the magnet of magnetic driving mechanism and the Z-direction of coil and described swing fulcrum in Z-direction.
5. the optical unit with shake correcting function as claimed in claim 1, is characterized in that,
In described position-limit mechanism, the movable range of two directions of described movable module in Z-direction is limited between described teat and described fixed body at the oscillation centre line in described movable module when Z-direction is observed.
6. the optical unit with shake correcting function as claimed in claim 1, is characterized in that,
At least one party who forms in described movable module and described fixed body in the part of described position-limit mechanism consists of resin or rubber.
7. the optical unit with shake correcting function as claimed in claim 1, is characterized in that,
At least one party who forms in described movable module and described fixed body in the part of described position-limit mechanism consists of the snubber material that is pasted on described movable module or described fixed body.
8. the optical unit with shake correcting function as claimed in claim 1, is characterized in that,
Described optical element is lens, at the rear side of lens described in described movable module, is equiped with imaging apparatus,
Described shaking detection sensor is installed in described movable module, and the shake in when photography is detected.
9. the optical unit with shake correcting function as claimed in claim 8, is characterized in that,
Described movable module has lens driving module, and this lens driving module is built-in with the focusing for described lens,
Described lens driving module comprises: the moving body that described lens is held in to inner side; The lens actuating device that described moving body is moved along the optical axis direction of described lens; And the supporting mass that is equiped with described lens actuating device and described moving body.
10. the optical unit with shake correcting function as claimed in claim 1, is characterized in that,
In described position-limit mechanism, the described movable module side of the part of the side movable range of restriction in Z-direction and at least one side in described fixedly side form usings the oscillation centre side of described movable module as the arc surface at center.
11. optical units with shake correcting function as claimed in claim 10, is characterized in that,
In described position-limit mechanism, described movable module is limited between the leading section of described movable module side and the leading section on described fixedly side towards the movable range of Z-direction front side,
At least one party in the leading section on the leading section of described movable module side and described fixedly side forms usings the oscillation centre side of described movable module as the arc surface at center.
12. optical units with shake correcting function as claimed in claim 1, is characterized in that,
In described position-limit mechanism, the movable range of two directions of described movable module in X-direction, the movable range of two directions in Y direction, around the movable range of two directions of X-axis and at least one movable range in the movable range of two directions of Y-axis, be limited in being disposed between the teat and magnet of described shake correction with the hollow coil inner side of using in magnetic driving mechanism.
13. 1 kinds of optical units with shake correcting function, comprising:
Movable module is equiped with optical element in this movable module;
Fixed body, this fixed body supports described movable module;
Shaking detection sensor, this shaking detection sensor detects rocking of described movable module; And
Shake correction is used magnetic driving mechanism, and this shake correction swings to revise the shake of this movable module described movable module with magnetic driving mechanism according to the testing result of this shaking detection sensor on described fixed body, it is characterized in that,
Using three directions orthogonal in described fixed body respectively as X-axis, Y-axis, Z axis, and during using the direction along described optical axis as Z axis, between described movable module and described fixed body, form limited location mechanism, this position-limit mechanism to described movable module two directions in X-direction, two directions in Y direction, two directions in Z-direction, around two directions of X-axis, limit around two directions of Y-axis and around the movable range of two directions of Z axis
Described movable module is included in teat outstanding in X-direction, Y direction (103),
Described position-limit mechanism consists of described teat (103), rear side limit component (270) and front side limit component (290),
When observing from Z-direction, described rear side limit component (270) comprises respectively inwall (272a) and inwall (272b) four angle parts, wherein, the described teat (103) that stretch out along X-direction and Y direction described inwall (272a) and angle part in described movable module (1) separates minimum gap (GX1) in the outside of X-direction relative, described inwall (272b) separates minimum gap (GY1) in the outside of Y direction with teat (103) relative
Described rear side limit component (270) comprises with described teat (103) at the relative plate-like portion of the rear side of Z-direction (274),
The bight (297) of the frame part of described front side limit component (290) is relative in the front side of Z-direction with described teat (103),
The described optical unit with shake correcting function has:
Spring member, this spring member is connected between described fixed body and described movable module; And
Swing fulcrum, this swing fulcrum is formed between described fixed body and described movable module,
Described spring member to described movable module towards the described swing fulcrum application of force,
The part that forms described swing fulcrum in described fixed body has spring portion, and this spring portion makes the described swing fulcrum can displacement on optical axis direction.
14. optical units with shake correcting function as claimed in claim 13, is characterized in that,
Described spring portion is the plate spring part that described fixed body is processed.
15. optical units with shake correcting function as claimed in claim 14, is characterized in that,
Cave in towards the place ahead in the rear that is formed with the part of described swing fulcrum and described plate spring part in described fixed body.
16. optical units with shake correcting function as claimed in claim 13, is characterized in that,
Described swing fulcrum is hinge portion, and this hinge portion comprises: the side from described fixed body and described movable module is towards the outstanding support projection of Z-direction; And at opposite side and the chimeric supporting recess of described supporting teat,
In described position-limit mechanism, the movable range of two directions of described movable module in X-direction and the movable range of two directions in Y direction are limited in circumferential lateral surface and the described supporting of described supporting teat and use between the inner circumferential side face of recess.
17. optical units with shake correcting function as claimed in claim 13, is characterized in that,
When observing from Z-direction, described movable module is shaped as rectangle,
In described position-limit mechanism, described movable module is limited between described teat and described fixed body around the movable range of two directions of X-axis, the angle part observed when observing described But moving die piece from Z-direction around the movable range of two directions of Y-axis and at least one movable range in the movable range of two directions of Z axis.
18. optical units with shake correcting function as claimed in claim 13, is characterized in that,
In described position-limit mechanism, the movable range of two directions of described movable module in Z-direction is limited between described teat and described fixed body at the oscillation centre line in described movable module when Z-direction is observed.
19. optical units with shake correcting function as claimed in claim 13, is characterized in that,
In described position-limit mechanism, the movable range of two directions of described movable module in X-direction and the movable range of two directions in Y direction are limited between described teat and described fixed body.
20. optical units with shake correcting function as claimed in claim 13, is characterized in that,
Described projection is disposed at and forms described shake correction with between the position in the Z-direction of the position in the magnet of magnetic driving mechanism and the Z-direction of coil and described swing fulcrum in Z-direction.
21. optical units with shake correcting function as claimed in claim 13, is characterized in that,
In described position-limit mechanism, the described movable module side of the part of the side movable range of restriction in Z-direction and at least one side in described fixedly side form usings the oscillation centre side of described movable module as the arc surface at center.
22. optical units with shake correcting function as claimed in claim 21, is characterized in that,
In described position-limit mechanism, described movable module is limited between the leading section of described movable module side and the leading section on described fixedly side towards the movable range of Z-direction front side,
At least one party in the leading section on the leading section of described movable module side and described fixedly side forms usings the oscillation centre side of described movable module as the arc surface at center.
23. optical units with shake correcting function as claimed in claim 13, is characterized in that,
In described position-limit mechanism, the movable range of two directions of described movable module in X-direction, the movable range of two directions in Y direction, around the movable range of two directions of X-axis and at least one movable range in the movable range of two directions of Y-axis, be limited in being disposed between the teat and magnet of described shake correction with the hollow coil inner side of using in magnetic driving mechanism.
24. optical units with shake correcting function as claimed in claim 13, is characterized in that,
At least one party who forms in described movable module and described fixed body in the part of described position-limit mechanism consists of resin or rubber.
25. optical units with shake correcting function as claimed in claim 13, is characterized in that,
At least one party who forms in described movable module and described fixed body in the part of described position-limit mechanism consists of the snubber material that is pasted on described movable module or described fixed body.
26. optical units with shake correcting function as claimed in claim 13, is characterized in that,
Described optical element is lens, at the rear side of lens described in described movable module, is equiped with imaging apparatus,
Described shaking detection sensor is installed in described movable module, and the shake in when photography is detected.
27. 1 kinds of optical devices, have the optical unit with shake correcting function as described in any one in claim 1 to 12, it is characterized in that,
The described optical unit with shake correcting function is installed in optical device main body across snubber material.
28. 1 kinds of optical devices, have the optical unit with shake correcting function as described in any one in claim 13 to 26, it is characterized in that,
The described optical unit with shake correcting function is installed in optical device main body across snubber material.
29. 1 kinds of manufacture methods with the optical unit of shake correcting function, this optical unit with shake correcting function comprises:
Movable module is equiped with optical element in this movable module;
Fixed body, this fixed body supports described movable module;
Shaking detection sensor, this shaking detection sensor detects rocking of described movable module;
Shake correction is used magnetic driving mechanism, and this shake correction makes described movable module swing to revise the shake of this movable module with magnetic driving mechanism on described fixed body according to the testing result of described shaking detection sensor; And
Spring member, this spring member is connected between described fixed body and described movable module,
Using three directions orthogonal in described fixed body respectively as X-axis, Y-axis, Z axis, and during using the direction along described optical axis as Z axis, between described movable module and described fixed body, form limited location mechanism, this position-limit mechanism to described movable module two directions in X-direction, two directions in Y direction, two directions in Z-direction, around two directions of X-axis, limit around two directions of Y-axis and around the movable range of two directions of Z axis
Described movable module is included in teat outstanding in X-direction, Y direction (103),
Described position-limit mechanism consists of described teat (103), rear side limit component (270) and front side limit component (290),
When observing from Z-direction, described rear side limit component (270) comprises respectively inwall (272a) and inwall (272b) four angle parts, wherein, the described teat (103) that stretch out along X-direction and Y direction described inwall (272a) and angle part in described movable module (1) separates minimum gap (GX1) in the outside of X-direction relative, described inwall (272b) separates minimum gap (GY1) in the outside of Y direction with teat (103) relative
Described rear side limit component (270) comprises with described teat (103) at the relative plate-like portion of the rear side of Z-direction (274),
The bight (297) of the frame part of described front side limit component (290) is relative in the front side of Z-direction with described teat (103),
It is characterized in that,
By described movable module with described fixed body after the mode of predetermined distance configures, in described fixed body and described movable module, described spring member is installed.
30. 1 kinds of manufacture methods with the optical unit of shake correcting function, this optical unit with shake correcting function comprises:
Movable module is equiped with optical element in this movable module;
Fixed body, this fixed body supports described movable module;
Shaking detection sensor, this shaking detection sensor detects rocking of described movable module;
Shake correction is used magnetic driving mechanism, and this shake correction makes described movable module swing to revise the shake of this movable module with magnetic driving mechanism on described fixed body according to the testing result of described shaking detection sensor; And
Spring member, this spring member is connected between described fixed body and described movable module,
Using three directions orthogonal in described fixed body respectively as X-axis, Y-axis, Z axis, and during using the direction along described optical axis as Z axis, between described movable module and described fixed body, form limited location mechanism, this position-limit mechanism to described movable module two directions in X-direction, two directions in Y direction, two directions in Z-direction, around two directions of X-axis, limit around two directions of Y-axis and around the movable range of two directions of Z axis
Described movable module is included in teat outstanding in X-direction, Y direction (103),
Described position-limit mechanism consists of described teat (103), rear side limit component (270) and front side limit component (290),
When observing from Z-direction, described rear side limit component (270) comprises respectively inwall (272a) and inwall (272b) four angle parts, wherein, the described teat (103) that stretch out along X-direction and Y direction described inwall (272a) and angle part in described movable module (1) separates minimum gap (GX1) in the outside of X-direction relative, described inwall (272b) separates minimum gap (GY1) in the outside of Y direction with teat (103) relative
Described rear side limit component (270) comprises with described teat (103) at the relative plate-like portion of the rear side of Z-direction (274),
The bight (297) of the frame part of described front side limit component (290) is relative in the front side of Z-direction with described teat (103),
It is characterized in that,
By after described movable module and the link of described spring member, described movable module is configured with the mode of described fixed body across predetermined distance, then, described fixed body and described spring member are linked.
31. 1 kinds of manufacture methods with the optical unit of shake correcting function, this optical unit with shake correcting function comprises:
Movable module is equiped with optical element in this movable module;
Fixed body, this fixed body supports described movable module;
Shaking detection sensor, this shaking detection sensor detects rocking of described movable module;
Shake correction is used magnetic driving mechanism, and this shake correction makes described movable module swing to revise the shake of this movable module with magnetic driving mechanism on described fixed body according to the testing result of described shaking detection sensor; And
Spring member, this spring member is connected between described fixed body and described movable module,
Using three directions orthogonal in described fixed body respectively as X-axis, Y-axis, Z axis, and during using the direction along described optical axis as Z axis, between described movable module and described fixed body, form limited location mechanism, this position-limit mechanism to described movable module two directions in X-direction, two directions in Y direction, two directions in Z-direction, around two directions of X-axis, limit around two directions of Y-axis and around the movable range of two directions of Z axis
Described movable module is included in teat outstanding in X-direction, Y direction (103),
Described position-limit mechanism consists of described teat (103), rear side limit component (270) and front side limit component (290),
When observing from Z-direction, described rear side limit component (270) comprises respectively inwall (272a) and inwall (272b) four angle parts, wherein, the described teat (103) that stretch out along X-direction and Y direction described inwall (272a) and angle part in described movable module (1) separates minimum gap (GX1) in the outside of X-direction relative, described inwall (272b) separates minimum gap (GY1) in the outside of Y direction with teat (103) relative
Described rear side limit component (270) comprises with described teat (103) at the relative plate-like portion of the rear side of Z-direction (274),
The bight (297) of the frame part of described front side limit component (290) is relative in the front side of Z-direction with described teat (103),
It is characterized in that,
By after described fixed body and the link of described spring member, described movable module is configured with the mode of described fixed body across predetermined distance, then, described movable module and described spring member are linked.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008265677 | 2008-10-14 | ||
| JP2008-265677 | 2008-10-14 | ||
| PCT/JP2009/005125 WO2010044212A1 (en) | 2008-10-14 | 2009-10-02 | Optical unit with shake correction function, optical apparatus, and method of manufacturing optical unit with shake correction function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102187273A CN102187273A (en) | 2011-09-14 |
| CN102187273B true CN102187273B (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200980141620.4A Expired - Fee Related CN102187273B (en) | 2008-10-14 | 2009-10-02 | Optical unit with shake correction function, optical apparatus, and method of manufacturing optical unit with shake correction function |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8396357B2 (en) |
| JP (2) | JP5542681B2 (en) |
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| JP5604068B2 (en) * | 2009-08-11 | 2014-10-08 | 日本電産サンキョー株式会社 | Optical unit and manufacturing method thereof |
| JP5755414B2 (en) * | 2010-06-08 | 2015-07-29 | 日本電産サンキョー株式会社 | Optical unit with shake correction function |
| JP5771373B2 (en) * | 2010-08-06 | 2015-08-26 | 日本電産サンキョー株式会社 | Optical unit with shake correction function |
| KR101164755B1 (en) * | 2010-11-02 | 2012-07-12 | 엘지이노텍 주식회사 | Voice coil motor and method of driving thereof |
| WO2012067377A2 (en) * | 2010-11-18 | 2012-05-24 | Lg Innotek Co., Ltd. | Camera module and method for manufacturing the same |
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| JP5735154B2 (en) | 2015-06-17 |
| JP2014112267A (en) | 2014-06-19 |
| JP5542681B2 (en) | 2014-07-09 |
| JPWO2010044212A1 (en) | 2012-03-08 |
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| CN102187273A (en) | 2011-09-14 |
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